Howmet Fastening Systems
Howmet Fastening Systems
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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.
Unit of Measure

Specifications

A - MAX

 N/A 0.525

C - MIN

 N/A 0.419

H - MAX

 N/A 0.360

S - MIN

 N/A 0.110

V - REF

 N/A 0.055

W

 N/A 0.376 in0.376-0.367

Axial Tensile Strength (LBS. MIN)

 N/A 9820

Approx. Weight (LBS/100)

 N/A 0.620

Finish

 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 plus Kaylube Molybdenum Disulfide Dry Lubricant Coat per AS5272, Type I

Thread Type

 N/A Unified

Configuration 1

 N/A Hex

Lock

 N/A Crimp Lock

Simplified Material

 N/A Alloy Steel

Strength

 N/A 160KSI - 1100Mpa

Temperature

 N/A 450°F - 235°C

Thread

 N/A 0.3125-24 UNJF-3B

Part Family

 N/A H16