Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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THREAD: AS8879
MATERIAL: Carbon steel, heat treated.
FINISH: Cadmium plated per NASM25027, Kaylube molybdenum disulfide dry lubricant coated per AS5272.
PROCUREMENT SPEC: NASM25027.
TEMPERATURE: 450°F.
VARIATIONS: Add "BC" for bottom countersunk rivet holes. Example: K2100-3BC.
K2100 Anchor Nut - One-Lug, 100&#176, Countersunk
Unit of Measure
1 

Item #

A - MAX

B - REF

C

D

E REF

H - MAX

J

K

N - REF

V - REF

W - MAX

Approx. Weight (LBS/100)

Thread

K2100-4 N/A 1.252 N/A 0.215 N/A 0.505-0.495 N/A 0.545-0.535 N/A 0.310 N/A 0.340 N/A 0.314-0.310 N/A 0.103-0.098 N/A 0.296 N/A 0.050 N/A 0.619 N/A 0.630 N/A 0.2500-28 UNJF-3B
K2100-3BC N/A 1.013 N/A 0.215 N/A 0.349-0.339 N/A 0.416-0.406 N/A 0.227 N/A 0.281 N/A 0.314-0.310 N/A 0.103-0.098 N/A 0.225 N/A 0.032 N/A 0.453 N/A 0.380 N/A 0.1900-32 UNJF-3B
K2100-4BC N/A 1.252 N/A 0.215 N/A 0.505-0.495 N/A 0.545-0.535 N/A 0.310 N/A 0.340 N/A 0.314-0.310 N/A 0.103-0.098 N/A 0.296 N/A 0.050 N/A 0.619 N/A 0.630 N/A 0.2500-28 UNJF-3B
Unit of Measure
1