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  • Meets torque requirements for IFI 100/107 Grade B (unified) and ANSI B18.16.1M (metric) locknuts.
  • Type HN and HNL are for use in sheet hardness HRB 60 or less on the Rockwell “B” scale.
Unit of Measure
Items
Nuts - Types H, HN, HNL

Nuts – Types H, HNL - Unified
Nuts - Types H, HN, HNL

Nuts – Types H, HNL - Unified
Nuts - Types H, HN, HNL

Nuts – Types H, HNL - Unified
Thread Size N/A .250-20 (1/4-20) N/A .313-18 (5/16-18) N/A .375-16 (3/8-16)
Type N/A Self-Locking HNL
Thread Code N/A 0420 N/A 0518 N/A 0616
A (Shank) Max.
N/A .058 in CL_H_HN_dimension.JPG
Min. Sheet Thickness N/A .058 in
Hole Size in Sheet + 0.005 - 0.000 N/A .344 in N/A .413 in N/A .500 in
C Max. N/A .343 in N/A .412 in N/A .499 in
E ± .010 N/A .500 in N/A .575 in N/A .650 in
T2 ± .010 N/A .189 in N/A .240 in N/A .300 in
Min. Dist. Hole C/L to Edge
N/A .38 in N/A .420 in N/A .480 in
Thread Specification N/A IFI 100/107 Grade B
Fastener Material N/A Carbon Steel
Material Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless plus sealant/lubricant
For Use in Sheet Hardness N/A HRB 60 / HB 107 or Less
CAD Supplier N/A PennEngineering® (PEM®)