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 threads in sheets as thin as .025”.

If you require a standoff which we do not offer in this bulletin, please contact us. We will be happy to work with you to satisfy your special need.
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Unit of Measure

Thread Size

 .086-56 (#2-56)

Thread Code

 256

Length Code

 500

Style

 #3
Min. Sheet Thickness1 .025 in

Hole Size in Sheet + .003 - .000

 .166 in

C + .000 - .005

 .165 in
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D - Min. Thread Depth

 .200 in

H Nom.

 .187 in
L - Length ± .0032 .500 in

Min. Dist. Hole C/L to Edge

 .23 in
For Use in Sheet Hardness3 HRB 60 / HB 107 or Less

Thread Specification

 Internal, ANSI B1.1, 2B

Fastener Material

 Non-heat Treated Carbon Steel

Standard Finish

 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.