JPS61278608A - Rivet - Google Patents

Rivet

Info

Publication number
JPS61278608A
JPS61278608A JP11663885A JP11663885A JPS61278608A JP S61278608 A JPS61278608 A JP S61278608A JP 11663885 A JP11663885 A JP 11663885A JP 11663885 A JP11663885 A JP 11663885A JP S61278608 A JPS61278608 A JP S61278608A
Authority
JP
Japan
Prior art keywords
rivet
core material
head
core
rivet body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11663885A
Other languages
Japanese (ja)
Other versions
JPH0586482B2 (en
Inventor
二川 明夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Topura Co Ltd
Original Assignee
Topura Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Topura Co Ltd filed Critical Topura Co Ltd
Priority to JP11663885A priority Critical patent/JPS61278608A/en
Publication of JPS61278608A publication Critical patent/JPS61278608A/en
Publication of JPH0586482B2 publication Critical patent/JPH0586482B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Dowels (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は鉄板や鋼材などを重ね合わせて締結するリベッ
ト、特に回転工具により回転されて締結を行なうリベッ
トに関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a rivet for fastening iron plates, steel materials, etc. by overlapping them, and particularly to a rivet that is rotated by a rotating tool to perform fastening.

(従来の技術) 従来、この種リベットとしては、第3図乃至第5図に示
すようなものが知られている。このリベット101につ
いて説明すると、第4図に示すように、鋼材等よりなる
硬材質の芯材102と、その芯材102の外周に嵌合さ
れるアルミニュム等よりなる軟材質のリベット本体10
3とからなっている。芯材102は棒状の軸部104と
、その軸部104よジも小径の首部105と、その首部
105を介して軸部104に連なる大径の頭部106と
を有し、他方、リベット本体103は一端に環状7ラン
ゾ107′t−備えた筒状体よりなっている。
(Prior Art) Conventionally, as this type of rivet, those shown in FIGS. 3 to 5 are known. To explain this rivet 101, as shown in FIG. 4, there is a core material 102 made of a hard material such as steel, and a rivet body 10 made of a soft material such as aluminum that is fitted around the outer periphery of the core material 102.
It consists of 3. The core material 102 has a rod-shaped shaft portion 104, a neck portion 105 with a smaller diameter than the shaft portion 104, and a large-diameter head portion 106 that is connected to the shaft portion 104 via the neck portion 105, and a rivet body. 103 consists of a cylindrical body with seven annular rings 107't at one end.

上記りペラ)101を用いて2枚の板部材108゜10
9を締結するには、第3図に示すように、板部材108
,109i重ね合わせて、ドリル110を回転工具11
1等によって回転駆動させることによって、板部材10
8,109t−貫通する下穴112を開け、次に第4図
に示すように、芯材102の外周にリベット本体103
を嵌合して形成したリペツ)101’lk頭部106か
ら前記下穴112に挿入してリベット本体103の7ラ
ンジ107を板部材の一方(第4図では上方の板部材1
08)の表面に当接させる。それから第5図に示すよう
に1引抜き工具113を用いてリベット本体103へ圧
縮方向の力を加えてリベット本体103の7ランソ10
7と反対側の端部103at−押し漬し、このようにし
て板部材108,109をリベット本体103により締
結する。すなわち、引抜き工A113の外筒114先端
ヲリベット本体103の79ンソ107外表面に当接さ
せるとともに、外筒114内に軸方向に摺動可能に配設
されたチャック部材115によ)芯材102の軸部10
4を把持してチャック部材115を外筒114に対して
軸方向に相対摺動させると、芯材102へ′引張力が加
えられるので、該芯材102の頭部106によってリベ
ット本体103の7ランジ107と反対側の端部103
aに圧縮力が加えられ、該端部103aは押し潰されて
半径方向へ拡大して板部材108,109の下穴112
の径よりも大きくなシ、これによってリベット本体10
3の該下角112からの抜は外れが防止されるとともに
、該リベット本体103によって板部材108゜109
がしつかシかしめられる。また、リベット本体103の
端部103aが押し潰されるKつれて芯材102に加わ
る引張応力が次第に大きくなるので、該引張応力が所定
値金超えたとき、芯材102は首部105において切断
される。
Two plate members 108°10 using the above-mentioned
9, as shown in FIG.
, 109i are superimposed and the drill 110 is connected to the rotary tool 11.
By rotationally driving the plate member 10 by
8,109t - Drill a pilot hole 112 through it, and then insert a rivet body 103 around the outer periphery of the core material 102, as shown in FIG.
The 7 flange 107 of the rivet body 103 is inserted into the pilot hole 112 from the head 106 of the rivet formed by fitting the rivet body 103 to one side of the plate member (in FIG. 4, the upper plate member 1).
08). Then, as shown in FIG.
7 and the opposite end 103at, and in this way the plate members 108 and 109 are fastened by the rivet body 103. That is, the tip of the outer cylinder 114 of the drawer A113 is brought into contact with the outer surface of the 79-inch hole 107 of the rivet main body 103, and the core material 102 is brought into contact with the chuck member 115 disposed so as to be slidable in the axial direction inside the outer cylinder 114. shaft part 10 of
4 and slide the chuck member 115 relative to the outer cylinder 114 in the axial direction, a tensile force is applied to the core material 102, so the head 106 of the core material 102 causes the rivet body 103 to End 103 opposite lunge 107
A compressive force is applied to the end portion 103a, and the end portion 103a is crushed and expanded in the radial direction to form the pilot hole 112 of the plate members 108, 109.
The diameter of the rivet body 10 is larger than that of the rivet body 10.
3 is prevented from being pulled out from the lower corner 112, and the plate member 108° 109 is prevented by the rivet body 103.
It's stiff or stiff. Further, as the end portion 103a of the rivet body 103 is crushed, the tensile stress applied to the core material 102 gradually increases, so when the tensile stress exceeds a predetermined value, the core material 102 is cut at the neck portion 105. .

(発明が解決しようとする問題点) ところで、前述のように従来のリベット101を使用す
る場合には、下穴112を開ける工程とりペラ)101
の芯材102に引張力を加えてかしめる工程との二工程
が必要になるばかシでなく、穴開は用の工具およびかし
め用の工具の二種類の工具が必要となるので、作業が面
倒で手間がかか多能率が悪いという問題点があった。
(Problems to be Solved by the Invention) By the way, when using the conventional rivet 101 as described above, the process of drilling the pilot hole 112 (peller) 101
Instead of requiring two steps: applying tensile force to the core material 102 and caulking it, two types of tools are required for drilling the hole and a caulking tool, making the work easier. There were problems in that it was troublesome, time-consuming, and had poor multi-efficiency.

そこで本発明は上記従来の問題点に着目してなされたも
ので、その目的とするところは、回転工”  具により
リベットに回転力を与えるだけで下穴開けからかしめま
でを連続して行なうことによって、簡単容易且つ能率良
くリベツティングができるリベットを提供することにあ
る。
Therefore, the present invention was made with attention to the above-mentioned conventional problems, and its purpose is to continuously perform the process from drilling the pilot hole to caulking by simply applying rotational force to the rivet using a rotary tool. To provide a rivet that can be riveted simply, easily and efficiently.

(問題点を解決するための手段) 上記目的を達成するため、本発明に係るリベットは、切
刃を備えた頭部と、その頭部に運なシ外周にねじ切ルさ
れたねじ部と、そのねじ部に運な)回転トルクを受ける
軸部とを有し、硬質材よりなる芯材と;該芯材のねじ部
外側に螺合され、軟質材よりなる筒状のリベット本体と
;から構成され、前記芯材にはその一部分を剪断応力に
対してその他の部分よりも脆弱にして剪断部を形成し、
また前記リベット本体の芯材頭部に近接する側の端部の
外径を該頭部の外径よ〕も大きくならないように設定す
るとともに該リベット・本体の他端部にフランジを形成
し、更に前記リベット本体の外径を芯材頭部に近接する
側の端部からフランジを備えた他端部の方向に両次増大
させてテーパー状に形成した。
(Means for Solving the Problems) In order to achieve the above object, the rivet according to the present invention includes a head provided with a cutting edge, a threaded portion cut on the outer periphery of the head, a core material made of a hard material and having a shaft part that receives rotational torque (on the threaded part); a cylindrical rivet body made of a soft material and screwed onto the outside of the threaded part of the core material; the core material has a portion thereof more vulnerable to shear stress than other portions to form a shearing portion;
Further, the outer diameter of the end of the rivet body near the core head is set so as not to be larger than the outer diameter of the head, and a flange is formed at the other end of the rivet body, Further, the outer diameter of the rivet main body was formed into a tapered shape by increasing bi-dimensionally from the end close to the core head to the other end provided with the flange.

(実施例) 以下、図面に基づき本発BAK係るリベットの−実施例
について説明する。第1図および第2図において、1は
リベットで、このリベット1は鋼材等の硬質材よりなる
芯材2とアルミニュム等の軟質材よりなるリベット本体
3とから構成され、芯材2は、切刃4が形成された頭部
5と、該頭部5に運なり、外周に雄ねじを刻設されたね
じ部6と、そのねじ部6に連な夛、外周に軸方向に延び
るスプラインを形成された軸部8とを有する。ねじ部6
の外周のねじは図示例では左ねじてあシ、また該ねじ部
6の軸方向略中夫には、その外周面を環状に深く切欠い
て剪断部6aが形成されている。
(Example) Hereinafter, an example of the rivet according to the BAK of the present invention will be described based on the drawings. In FIGS. 1 and 2, 1 is a rivet, and this rivet 1 is composed of a core material 2 made of a hard material such as steel and a rivet body 3 made of a soft material such as aluminum. A head 5 on which a blade 4 is formed, a threaded part 6 extending to the head 5 and having a male thread engraved on its outer periphery, and a spline extending in the axial direction on the outer periphery that is connected to the threaded part 6. It has a shaft portion 8 that is Threaded part 6
In the illustrated example, the thread on the outer periphery is a left-hand thread, and a shearing portion 6a is formed by cutting deeply annularly into the outer periphery of the threaded portion 6 in the axial direction.

リベット本体3は中空の筒状(図示例では円筒状)に形
成され、その内周面には雌ねじ(図示例では右ねじ)が
刻設されておシ、リベット本体3は芯材2のねじ部6に
螺合されている。またリベット本体3の芯材頭部5に近
接する側の端部3bの外径は!*頭部5の外径と略等し
いか、あるいはそれよりも小さく形成されてお)、他方
、該リベット本体3の他端部には環状の7ランジ3aが
一体に形成されている。リベット本体3の外径は、芯材
頭部5に近接する側の端部3bから7ランジ3ae備え
た端部へ向って漸次増大してチーパル状を呈している。
The rivet body 3 is formed into a hollow cylindrical shape (cylindrical in the illustrated example), and has a female thread (right-handed thread in the illustrated example) carved on its inner peripheral surface. It is screwed into part 6. Also, what is the outer diameter of the end 3b of the rivet body 3 on the side closer to the core head 5? *The outer diameter of the rivet body 3 is approximately equal to or smaller than the outer diameter of the head 5. On the other hand, an annular 7 flange 3a is integrally formed at the other end of the rivet body 3. The outer diameter of the rivet body 3 gradually increases from the end 3b on the side close to the core head 5 toward the end provided with seven flange 3ae, forming a chip-pal shape.

次に上記リベット1を使用して二枚の板部材10゜11
をかしめる場合について説明する。
Next, use the above rivet 1 to attach two plate members 10°11
The case of caulking will be explained.

先ず、従来公知のドリル用工具やトルクコント四−ルド
ライバー等の回転工具(図示せず)にリベット1のスプ
ライン軸部8を取付けて、芯材2の頭部st−一方の板
部材100表面の所定位置に当接させて位置決めした後
、回転工具を作動させてリベット1t−右回りに回転さ
せると、芯材2の頭部5には切刃4が設けられているの
で、該頭部5は回転しながら板部材10.11を貫通し
て下穴12を形成する。リベット1に回転力を与えなが
ら押圧しつづけると、リベット本体3が下穴12内に進
入していき、該リベット本体3のテーパー状外周面が下
穴12の内周面と接触し、これらの接触による摩擦抵抗
力が所定値を超えると、リベット本体3は該摩擦抵抗力
により回転を阻止されて芯材2のみが回転する。ところ
で、前述のように、芯材2のねじ部6のねじ切夛方向は
左ねじてあシ、一方その回転方向は右回シであるから、
芯材2には後退方向の力が加わると同時にリベット本体
3には芯材2の頭部5へ向けて推力が加わるので、リベ
ット本体3は、フランジ3aが板部材10の表面と当接
するまで下穴12に進入すると同時に、7ランソ3&と
反対側の端部3bが芯材2の頭部5によって押し潰され
ながら、外方へ拡がっていき、これによって二枚の板部
材10.11はリベット本体3によってしつかシかしめ
られる。
First, the spline shaft portion 8 of the rivet 1 is attached to a rotary tool (not shown) such as a conventionally known drill tool or torque control four-driver, and After positioning the rivet by contacting it with a predetermined position, the rotary tool is operated to rotate the rivet 1t clockwise.Since the head 5 of the core material 2 is provided with the cutting blade 4, 5 passes through the plate member 10.11 while rotating to form a pilot hole 12. When the rivet 1 is continuously pressed while applying rotational force, the rivet body 3 advances into the pilot hole 12, and the tapered outer circumferential surface of the rivet body 3 comes into contact with the inner circumferential surface of the pilot hole 12. When the frictional resistance force due to contact exceeds a predetermined value, the rivet body 3 is prevented from rotating by the frictional resistance force, and only the core material 2 rotates. By the way, as mentioned above, the thread cutting direction of the threaded portion 6 of the core material 2 is a left-hand thread, while the rotation direction thereof is a clockwise thread.
At the same time that a force in the retreating direction is applied to the core material 2, a thrust force is applied to the rivet body 3 toward the head 5 of the core material 2, so that the rivet body 3 continues until the flange 3a comes into contact with the surface of the plate member 10. At the same time as it enters the prepared hole 12, the end 3b on the opposite side of the 7 lanso 3& expands outward while being crushed by the head 5 of the core material 2, and as a result, the two plate members 10 and 11 It is crimped by the rivet body 3.

そして、芯材2の回転によりリベット本体3の端部が略
完全忙漬されて芯材2の頭部5がリベット本体3に対し
て後退できなくなると、芯材2のねじ部6にはリベット
本体3からの回転を停止させようとする力と回転工具か
らのトルクとが加えられることになシ、該芯材2はねじ
部6の小径な剪断部6aにおいて切断され、この結果第
2図に示すように、板部材10.11はリベット本体3
によ“つて完全にかしめられる。従って、リベット1を
一方向に回転させるだけで、簡単容易にリベツティング
を行なうことができる。
When the end of the rivet main body 3 is almost completely immersed due to the rotation of the core material 2 and the head 5 of the core material 2 cannot retreat with respect to the rivet main body 3, the threaded part 6 of the core material 2 When a force to stop the rotation from the main body 3 and a torque from the rotary tool are applied, the core material 2 is cut at the small diameter shearing portion 6a of the threaded portion 6, and as a result, as shown in FIG. As shown, the plate member 10.11 is attached to the rivet body 3
Therefore, riveting can be performed simply and easily by simply rotating the rivet 1 in one direction.

尚、芯材2全体に焼入れ等の熱処理を施して硬化させた
シ、芯材頭部5の切刃4にセラミックコーティングを施
せば、更に板部材の穴開けが容易となシ、従ってリベツ
ティングの作業能率を向上させることができる。
Incidentally, if the entire core material 2 is hardened by heat treatment such as quenching, and the cutting edge 4 of the core material head 5 is coated with a ceramic coating, it will be easier to drill holes in the plate member, and therefore riveting will be easier. Work efficiency can be improved.

また、本実施例では、回転工具のトルクを受けるため芯
材2の軸部8にスプラインを設けたが、その代わシに、
軸部8の横断面形状を多角形にしてもよい。
Further, in this embodiment, a spline was provided on the shaft portion 8 of the core material 2 in order to receive the torque of the rotary tool, but instead,
The cross-sectional shape of the shaft portion 8 may be polygonal.

さらに本実施例では芯材2のねじ部6の一部を環状に切
欠いて小径にしているが、軸部8のいずれか適当な位置
を環状に切欠いて小径にしても同様な効果が得られるこ
とは勿論である。
Further, in this embodiment, a part of the threaded portion 6 of the core material 2 is cut out in an annular shape to make the diameter smaller, but the same effect can be obtained by cutting out an appropriate position in the shaft portion 8 in an annular shape to make the diameter smaller. Of course.

(発明の効果) 本発明に係るリベットは以上の構成および作用からなる
もので、回転工具によりリベットに回転力を与えるだけ
で下穴開けからかしめまでを一工程で連続して行なうこ
とができ、従来のように下穴開けやかしめ工程で別個の
工具を使用する必要がないので、簡単容易且つ能率良く
リベツティングを行なうことができるものである。
(Effects of the Invention) The rivet according to the present invention has the above-described structure and function, and can continuously perform the process from drilling a pilot hole to caulking in one step by simply applying rotational force to the rivet with a rotating tool. Unlike the conventional method, there is no need to use separate tools for the drilling and caulking processes, so riveting can be performed easily and efficiently.

【図面の簡単な説明】[Brief explanation of drawings]

第1図、第2図は本発明の実施例に係るリベットおよび
このリベットを使用してリベツティングする様子を示す
一部破断側面図、第3図乃至第5図は従来例に係るリベ
ットおよびこのリベットt−使用してリベツティングす
る様子を示す側断面図である。 符号の説明 1・・・リベット    2・・・芯材3・・・リベッ
ト本体  3a・・・7ランソ3b・・・端部    
 4・・・切刃5・・・頭部      6・・・ねじ
部6a・・・剪断部    8・・・軸部10.11・
・・板部材
1 and 2 are partially cutaway side views showing a rivet according to an embodiment of the present invention and how riveting is performed using this rivet, and FIGS. 3 to 5 are a rivet according to a conventional example and this rivet. It is a sectional side view showing how riveting is performed using T-. Explanation of symbols 1... Rivet 2... Core material 3... Rivet body 3a...7 Ranso 3b... End part
4... Cutting blade 5... Head 6... Screw part 6a... Shearing part 8... Shaft part 10.11.
・・Plate parts

Claims (6)

【特許請求の範囲】[Claims] (1)切刃を備えた頭部と、その頭部に連なり外周にね
じ切りされたねじ部と、そのねじ部に連なり回転トルク
を受ける軸部とを有し、硬質材よりなる芯材と;該芯材
のねじ部外周に螺合され、軟質材よりなる筒状のリベッ
ト本体と;から構成され、前記芯材にはその一部分を剪
断応力に対してその他の部分よりも脆弱にして剪断部を
形成し、また前記リベット本体の芯材頭部に近接する側
の端部の外径を該頭部の外径よりも大きくならないよう
に設定するとともに該リベット本体の他端部にフランジ
を形成し、更に前記リベット本体の外径を芯材頭部に近
接する側の端部からフランジを備えた他端部の方向に漸
次増大させてテーパー状に形状してなるリベット。
(1) A core material made of a hard material, having a head equipped with a cutting edge, a threaded part continuous to the head and threaded on the outer periphery, and a shaft part continuous to the threaded part and subjected to rotational torque; A cylindrical rivet body made of a soft material and screwed onto the outer periphery of the threaded portion of the core material; , and the outer diameter of the end of the rivet body near the core head is set so as not to be larger than the outer diameter of the head, and a flange is formed at the other end of the rivet body. Further, the rivet has a tapered shape by gradually increasing the outer diameter of the rivet body from the end close to the core head toward the other end provided with the flange.
(2)前記芯材の剪断部を、該芯材の外周を環状に切欠
くことによつて形成してなる特許請 求の範囲第1項記載のリベット。
(2) The rivet according to claim 1, wherein the sheared portion of the core material is formed by cutting the outer periphery of the core material into an annular shape.
(3)前記芯材の軸部には、回転工具のトルクを受ける
ため、軸方向に延びるスプラインを形成してなる特許請
求の範囲第1項記載のリベット。
(3) The rivet according to claim 1, wherein a spline extending in the axial direction is formed on the shaft portion of the core material in order to receive the torque of a rotating tool.
(4)前記芯材の軸部の横断面形状を、回転工具のトル
クを受けるため、多角形にしてなる特許請求の範囲第1
項記載のリベット。
(4) The cross-sectional shape of the shaft portion of the core material is polygonal in order to receive the torque of the rotating tool.
Rivets listed in section.
(5)前記芯材に熱処理を施して硬化させてなる特許請
求の範囲第1項乃至第3項記載のリベット。
(5) The rivet according to any one of claims 1 to 3, wherein the core material is hardened by heat treatment.
(6)前記芯材頭部の切刃部をセラミックコーテングに
より硬化させてなる特許請求の範囲第1項乃至第3項記
載のリベット。
(6) The rivet according to any one of claims 1 to 3, wherein the cutting edge portion of the core head is hardened with ceramic coating.
JP11663885A 1985-05-31 1985-05-31 Rivet Granted JPS61278608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11663885A JPS61278608A (en) 1985-05-31 1985-05-31 Rivet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11663885A JPS61278608A (en) 1985-05-31 1985-05-31 Rivet

Publications (2)

Publication Number Publication Date
JPS61278608A true JPS61278608A (en) 1986-12-09
JPH0586482B2 JPH0586482B2 (en) 1993-12-13

Family

ID=14692155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11663885A Granted JPS61278608A (en) 1985-05-31 1985-05-31 Rivet

Country Status (1)

Country Link
JP (1) JPS61278608A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0191111U (en) * 1987-12-10 1989-06-15
JP2006342963A (en) * 2005-06-10 2006-12-21 Newfrey Llc Improved blind rivet
JP2011190930A (en) * 2010-02-22 2011-09-29 Fukui Byora Co Ltd Blind rivet
JP2013092259A (en) * 2006-02-12 2013-05-16 Wuerth Internatl Ag Drive rivet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0191111U (en) * 1987-12-10 1989-06-15
JP2006342963A (en) * 2005-06-10 2006-12-21 Newfrey Llc Improved blind rivet
JP2013092259A (en) * 2006-02-12 2013-05-16 Wuerth Internatl Ag Drive rivet
JP2011190930A (en) * 2010-02-22 2011-09-29 Fukui Byora Co Ltd Blind rivet

Also Published As

Publication number Publication date
JPH0586482B2 (en) 1993-12-13

Similar Documents

Publication Publication Date Title
CA2379063C (en) High strength blind bolt
US4967463A (en) Method of fastening panels using drive nut blind fasteners
US8517649B2 (en) Dual-action disposable clamp
US3935786A (en) Self-drilling rivet
EP1635994B1 (en) Blind fastener and nose assembly for installation of the blind fastener
US5066179A (en) Blind fastener
US5651649A (en) High strength torque type blind bolt with anti-rotation
US8777533B2 (en) Blind fastener
US4168650A (en) Blind fastener
US4370081A (en) Blind fastener with work gripping head
CA2465394C (en) Knurled fastener with cutting edges and removable head
US6065918A (en) Self-drilling blind setting rivet
US4681494A (en) Drive nut blend fastener with cap nut
JPS61278608A (en) Rivet
US20180163766A1 (en) Blind bolt fastener with embossments
GB1604502A (en) Blind fastener
EP0152531B1 (en) Blind fastener
EP3728875B1 (en) Fastener assembly
EP3728874B1 (en) Fastener assembly
US20240183379A1 (en) Flush blind fastener
WO2023038975A1 (en) Flush blind fastener
JPS596967Y2 (en) Lining collet chuck
JPS638324B2 (en)
JPS6044612A (en) Torque limiting screw lock stud and method of fixing said stud