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THREAD: AS8879
MATERIAL: Carbon steel, heat treated.
FINISH: Cadmium plated per AMS-QQ-P-416, Type II. Kaylube molybdenum disulfide dry lubricant coated per AS5272.
PERFORMANCE: NASM25021, except axial tensile strenght as tabulated based on 160 000 PSI.
TEMPERATURE: 450°F.
VARIATIONS: Add "BC" for bottom countersunk rivet holes. Example: MK1400-4BC.
Unit of Measure

A ± .005

N/A 0.172

B - REF

N/A 0.162

C ± .002

N/A 0.343

D - MIN

N/A 0

H - MAX

N/A 0.145

L - MAX

N/A 0.503

R
+.005
-.000

N/A 0.066

T - REF

N/A 0.032

W - MAX

N/A 0.242

Axial Tensile Strength (LBS. MIN)

N/A 1600

Approx. Weight (LBS/100)

N/A 0.080

Bottom countersunk rivet holes

N/A No

Thread Type

N/A Unified

Configuration 1

N/A Two Lug

Configuration 2

N/A Fixed

Configuration 3

N/A Miniature

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 0.1380-32 UNJC-3B