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.
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Item #

A ± .005

B - REF

C ± .002

D (± .005)

H - MAX

L - MAX

R
+.005
-.000

T - REF

W - MAX

Axial Tensile Strength (LBS. MIN)

Approx. Weight (LBS/100)

Thread

K1140-08 N/A 0.344 N/A 0.215 N/A 0.688 N/A 0.365 N/A 0.272 N/A 0.948 N/A 0.098 N/A 0.032 N/A 0.422 N/A 2490 N/A 0.300 N/A 8-32 UNJC-3B
K1140-3 N/A 0.344 N/A 0.215 N/A 0.688 N/A 0.411 N/A 0.281 N/A 0.948 N/A 0.098 N/A 0.032 N/A 0.453 N/A 3470 N/A 0.320 N/A 10-32 UNJF-3B
K1140-08BC N/A 0.344 N/A 0.215 N/A 0.688 N/A 0.365 N/A 0.272 N/A 0.948 N/A 0.098 N/A 0.032 N/A 0.422 N/A 2490 N/A 0.300 N/A 8-32 UNJC-3B
K1140-3BC N/A 0.344 N/A 0.215 N/A 0.688 N/A 0.411 N/A 0.281 N/A 0.948 N/A 0.098 N/A 0.032 N/A 0.453 N/A 3470 N/A 0.320 N/A 10-32 UNJF-3B
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