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AERO-FLEX flexible top locknuts
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Item #

Size

Thread Fit

Proof load

Max. Across Flats - B

Min. Across Flats - B

(Ref) Across Corners - C

Thickness - A

(Ref) Wrench Pad - L

Weight per 1000

2XAFLF0420 N/A 1/4-20 in N/A UNC-2B N/A 5,730 lb N/A .439 in N/A .430 in N/A .491 in N/A .290 in N/A .122 in N/A 7.4 lb
2XAFLF0428 N/A 1/4-28 in N/A UNF-3B N/A 6,550 lb N/A .439 in N/A .430 in N/A .491 in N/A .320 in N/A .135 in N/A 7.4 lb
2XAFLF0518 N/A 5/16-18 in N/A UNC-2B N/A 9,600 lb N/A .502 in N/A .492 in N/A .561 in N/A .353 in N/A .150 in N/A 11.6 lb
2XAFLF0524 N/A 5/16-24 in N/A UNF-3B N/A 9,950 lb N/A .502 in N/A .492 in N/A .561 in N/A .353 in N/A .150 in N/A 11.6 lb
2XAFLF0616 N/A 3/8-16 in N/A UNC-2B N/A 13,800 lb N/A .564 in N/A .553 in N/A .631 in N/A .492 in N/A .210 in N/A 17.8 lb
2XAFLF0624 N/A 3/8-24 in N/A UNF-3B N/A 14,500 lb N/A .564 in N/A .553 in N/A .631 in N/A .492 in N/A .210 in N/A 17.8 lb
2XAFLF0813 N/A 1/2-13 in N/A UNC-2B N/A 22,000 lb N/A .752 in N/A .741 in N/A .846 in N/A .602 in N/A .285 in N/A 42.1 lb
2XAFLF0820 N/A 1/2-20 in N/A UNF-3B N/A 23,800 lb N/A .752 in N/A .741 in N/A .846 in N/A .602 in N/A .285 in N/A 42.1 lb
2XAFLF1011 N/A 5/8-11 in N/A UNC-2B N/A 34,000 lb N/A .940 in N/A .928 in N/A 1.059 in N/A .759 in N/A .410 in N/A 84.4 lb
2XAFLF1018 N/A 5/8-18 in N/A UNF-3B N/A 38,400 lb N/A .940 in N/A .928 in N/A 1.059 in N/A .759 in N/A .410 in N/A 84.4 lb
2XAFLF1210 N/A 3/4-10 in N/A UNC-2B N/A 50,000 lb N/A 1.064 in N/A 1.052 in N/A 1.200 in N/A .884 in N/A .505 in N/A 122.7 lb
2XAFLF1216 N/A 3/4-16 in N/A UNF-3B N/A 52,300 lb N/A 1.064 in N/A 1.052 in N/A 1.200 in N/A .884 in N/A .505 in N/A 122.7 lb
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