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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 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.
Thin sheet, thru-hole standoffs - TSO, TSOA, TSOS
Threaded Standoffs for Sheets as Thin as .025” - Types TSO, TSOA, TSOS 2
Unit of Measure
Items Thin sheet, thru-hole standoffs - TSO, TSOA, TSOS
TSO-256-090ZI
Threaded Standoffs for Sheets as Thin as .025” - Types TSO, TSOA, TSOS - Unified
Thin sheet, thru-hole standoffs - TSO, TSOA, TSOS
TSO-256-125ZI
Threaded Standoffs for Sheets as Thin as .025” - Types TSO, TSOA, TSOS - Unified
Thin sheet, thru-hole standoffs - TSO, TSOA, TSOS
TSO-256-187ZI
Threaded Standoffs for Sheets as Thin as .025” - Types TSO, TSOA, TSOS - Unified
Thin sheet, thru-hole standoffs - TSO, TSOA, TSOS
TSO-256-250ZI
Threaded Standoffs for Sheets as Thin as .025” - Types TSO, TSOA, TSOS - Unified
Thin sheet, thru-hole standoffs - TSO, TSOA, TSOS
TSO-256-312ZI
Threaded Standoffs for Sheets as Thin as .025” - Types TSO, TSOA, TSOS - Unified
Description N/A 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.
Thread Size N/A .086-56 (#2-56)
Thread Code N/A 256
Length Code N/A 090 N/A 125 N/A 187 N/A 250 N/A 312
Material Code N/A
Style N/A #1 N/A #1 N/A #1 N/A #1 N/A #2
Min. Sheet Thickness N/A .025 in
Hole Size in Sheet + .003 - .000 N/A .166 in
C + .000 - .005 N/A .165 in a1354.jpg
D - Min. Thread Depth N/A N/A N/A N/A N/A .200 in
H Nom. N/A .187 in
L - Length ± .0031 N/A .090 in N/A .125 in N/A .187 in N/A .250 in N/A .312 in
Min. Dist. Hole C/L to Edge N/A .23 in
For Use in Sheet Hardness2 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 Available in other lengths on special order.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.