Locked In Stud

Model / MPN: BACS21S12-16A | NSN: 5307-00-025-8302

A headless fastener externally threaded on both ends with each threaded portion of one but not necessarily the same diameter. It is designed to be locked in place by either a ring, lock, serrated or a ring, lock, keyed.

Product Details

NATO Stock Number

5307-00-025-8302

Sold in multiples of

DEMIL

Thread Class

3a nut thread

Thread Pitch Diameters

+0.3926 to 0.3946 inches stud thread

Thread Direction

Right-hand nut thread

Thread Direction

Right-hand stud thread

Thread Length

0.520 inches stud thread

Thread Length

0.625 inches nut thread

Locking Feature

Self-clinching head

Overall Length

1.750 inches

Distance From Serrated Portion To Nut End

1.000 inches

Distance From Serrated Portion To Stud End

0.750 inches

Distance From Serrated Portion To End Of Stud Thread

0.230 inches

Thready Qty Per Inch (tpi)

14 stud thread

Thready Qty Per Inch (tpi)

24 nut thread

Thread Size

0.375 inches nut thread

Thread Size

0.438 inches stud thread

Material

Steel comp 4130

Material Specification

Mil-s-6758, cond c4 military specification single material response

Surface Treatment

Cadmium

Style Designator

Locked in

Thread Series Designator

Unf nut thread

Thread Series Designator

Uns stud thread

BACS21S12 Series Parts

Pricing and Availability

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BACS21S12-16A Cross Reference

SF121-12SA16A
132217
130507
6W1598-12