AU474332B2 - A punch for making cruciform-recessed screws - Google Patents

A punch for making cruciform-recessed screws

Info

Publication number
AU474332B2
AU474332B2 AU71111/74A AU7111174A AU474332B2 AU 474332 B2 AU474332 B2 AU 474332B2 AU 71111/74 A AU71111/74 A AU 71111/74A AU 7111174 A AU7111174 A AU 7111174A AU 474332 B2 AU474332 B2 AU 474332B2
Authority
AU
Australia
Prior art keywords
cruciform
punch
making
recessed screws
recessed
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.)
Expired
Application number
AU71111/74A
Other versions
AU7111174A (en
Inventor
Nozomi Iwao
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.)
Iwatani Corp
Original Assignee
Iwatani Corp
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 Iwatani Corp filed Critical Iwatani Corp
Priority to AU71111/74A priority Critical patent/AU474332B2/en
Application granted granted Critical
Publication of AU474332B2 publication Critical patent/AU474332B2/en
Publication of AU7111174A publication Critical patent/AU7111174A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
AU71111/74A 1974-07-11 1974-07-11 A punch for making cruciform-recessed screws Expired AU474332B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU71111/74A AU474332B2 (en) 1974-07-11 1974-07-11 A punch for making cruciform-recessed screws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU71111/74A AU474332B2 (en) 1974-07-11 1974-07-11 A punch for making cruciform-recessed screws

Publications (2)

Publication Number Publication Date
AU474332B2 true AU474332B2 (en) 1976-01-15
AU7111174A AU7111174A (en) 1976-01-15

Family

ID=3754119

Family Applications (1)

Application Number Title Priority Date Filing Date
AU71111/74A Expired AU474332B2 (en) 1974-07-11 1974-07-11 A punch for making cruciform-recessed screws

Country Status (1)

Country Link
AU (1) AU474332B2 (en)

Also Published As

Publication number Publication date
AU7111174A (en) 1976-01-15

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