Description
Type S, SS, CLS, and CLSS nuts provide load-bearing threads in thin sheets with high pushout and torque-out resistance.
Type SP, PEM 300 nuts provide strong load-bearing threads in stainless steel sheets as thin as .030.
Types S / SS are recommended for use in steel or aluminum sheets HRB (Rockwell “B” scale) 80 or less and HB (Hardness Brinell) 150 or less.
Type SP is recommended for use in stainless steel sheets HRB (Rockwell “B” scale) 90 or less and HB (Hardness Brinell) 185 or less.
Thread Size .250-20 (1/4-20)
Thread Code 0420
Shank Code 1
A (Shank) Max. .054 in a1383.jpg
Rec. Min. Sheet Thickness .056 in
Hole Size in Sheet + .003 – .000 .344 in
C Max. .343 in E .010 .440 in T .010 .170 in
Min. Dist. Hole C/L to Edge .34 in
For Use in Sheet Hardness HRB 80 / HB 150 or less
Thread Specification Internal, ASME B1.1, 2B
Fastener Material Heat-Treated Carbon Steel
Standard Finish Zinc Plated, 5m, Colorless
Manufacturer Part Number: S-0420-1
Manufacturer: Electronic Components
