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These standoffs, which use the proven self-clinching design, install with a squeeze in properly sized round holes - and become permanently mounted in the thin sheet.

Types TSO, TSOS, and TSOA self-clinching threaded standoffs provide permanent thre
Unit of Measure

Thread Size

N/A .112-40 (#4-40)

Thread Code

N/A 6440

Length Code

N/A 312

Style

N/A #2
Min. Sheet Thickness1 N/A .025 in

Hole Size in Sheet + .003 - .000

N/A .213 in

C + .000 - .005

N/A .212 in a1354.jpg

D - Min. Thread Depth

N/A .220 in

H Nom.

N/A .250 in
L - Length ± .0032 N/A .312 in

Min. Dist. Hole C/L to Edge

N/A .27 in
For Use in Sheet Hardness3 N/A HRB 60 / HB 107 or Less

Thread Specification

N/A Internal, ANSI B1.1, 2B

Fastener Material

N/A Non-heat Treated Carbon Steel

Standard Finish

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
  • 1 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
  • 2 Available in other lengths on special order.
  • 3 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.

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