THREAD: AS8879
MATERIAL: 4037 alloy steel per AMS 6300 (UNS G40370), Heat treat - Rc 40-44 or 8740 alloy steel per AMS 6322 (UNS G87400). Heat treat - Rc 43-47.
FINISH:
  • H16-(*) Cadmium plate per AMS-QQ-P-416, Type II, Class 2 and Kaylube molybdenum disulfide dry lubricant per AS5272, Type I.
  • H16X(*) Cadmium plate per AMS-QQ-P-416, Type II, Class 3.
  • H16-(*)CW Cadmium plate per AMS-QQ-P-416, Type II, Class 3 and carbowax lubricant.
PERFORMANCE: NASM25027 except as follows:
  • Axial tensile strength as tabulated.
NOTES: "C" and "W" dimensions apply before forming self-locking feature.
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Item #

A - MAX

C - MIN

H - MAX

S - MIN

V - REF

W

Axial Tensile Strength (LBS. MIN)

Approx. Weight (LBS/100)

Thread

H16-3 N/A 0.350 N/A 0.277 N/A 0.250 N/A 0.080 N/A 0.045 N/A 0.251-0.243 N/A 3470 N/A 0.240 N/A 0.1900-32 UNJF-3B
H16-4 N/A 0.440 N/A 0.348 N/A 0.328 N/A 0.095 N/A 0.050 N/A 0.313-0.305 N/A 6200 N/A 0.390 N/A 0.2500-28 UNJF-3B
H16-5 N/A 0.525 N/A 0.419 N/A 0.360 N/A 0.110 N/A 0.055 N/A 0.376-0.367 N/A 9820 N/A 0.620 N/A 0.3125-24 UNJF-3B
H16-6 N/A 0.598 N/A 0.491 N/A 0.458 N/A 0.155 N/A 0.060 N/A 0.439-0.430 N/A 15200 N/A 0.990 N/A 0.3750-24 UNJF-3B
H16X3 N/A 0.350 N/A 0.277 N/A 0.250 N/A 0.080 N/A 0.045 N/A 0.251-0.243 N/A 3470 N/A 0.240 N/A 0.1900-32 UNJF-3B
H16X4 N/A 0.440 N/A 0.348 N/A 0.328 N/A 0.095 N/A 0.050 N/A 0.313-0.305 N/A 6200 N/A 0.390 N/A 0.2500-28 UNJF-3B
H16X5 N/A 0.525 N/A 0.419 N/A 0.360 N/A 0.110 N/A 0.055 N/A 0.376-0.367 N/A 9820 N/A 0.620 N/A 0.3125-24 UNJF-3B
H16X6 N/A 0.598 N/A 0.491 N/A 0.458 N/A 0.155 N/A 0.060 N/A 0.439-0.430 N/A 15200 N/A 0.990 N/A 0.3750-24 UNJF-3B
H16-3CW N/A 0.350 N/A 0.277 N/A 0.250 N/A 0.080 N/A 0.045 N/A 0.251-0.243 N/A 3470 N/A 0.240 N/A 0.1900-32 UNJF-3B
H16-4CW N/A 0.440 N/A 0.348 N/A 0.328 N/A 0.095 N/A 0.050 N/A 0.313-0.305 N/A 6200 N/A 0.390 N/A 0.2500-28 UNJF-3B
H16-5CW N/A 0.525 N/A 0.419 N/A 0.360 N/A 0.110 N/A 0.055 N/A 0.376-0.367 N/A 9820 N/A 0.620 N/A 0.3125-24 UNJF-3B
H16-6CW N/A 0.598 N/A 0.491 N/A 0.458 N/A 0.155 N/A 0.060 N/A 0.439-0.430 N/A 15200 N/A 0.990 N/A 0.3750-24 UNJF-3B
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