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THREAD: Modified per AS8879.
MATERIAL: Carbon steel, heat treated.
FINISH: Cadmium plate per AMS-QQ-P-416, Type II, Class 2, plus Kaylube molybdenum disulfide dry film lubricant coat per AS5272.
PROCUREMENT SPEC: NASM25027, except axial tensile strength, based on 160 000 PSI.
TEMPERATURE: 450°F.
VARIATIONS: Add "BC" for bottom countersunk rivet holes. Example: K1140-3BC.
Unit of Measure

Specifications

A ± .005

N/A 0.344

B - REF

N/A 0.215

C ± .002

N/A 0.688

D (± .005)

N/A 0.411

H - MAX

N/A 0.281

L - MAX

N/A 0.948

R
+.005
-.000

N/A 0.098

T - REF

N/A 0.032

W - MAX

N/A 0.453

Axial Tensile Strength (LBS. MIN)

N/A 3470

Approx. Weight (LBS/100)

N/A 0.320

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 100° Countersunk

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 10-32 UNJF-3B