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CONCEALED HEAD STUD
CONCEALED HEAD STUD
(Hi-Torque Locking Fasteners)
Tolerances (unless noted): Decimals ±.005, Frac. ±1/64. NOTE: Minimum of 1-1/2 hole dia. From c/l to edge.
Recommended Finishes - Passivate for Stainless Steel & None for Aluminum
Step 1 of 3:
Click on Base Part No. below
Printed catalog page(s): 108
Base
Part
No.
Thread
Mfg. Hole
Counterbore
Dia.
Max.
Dim.
'A'
Hex
Size
66580
4-40
0.172
0.171
3/16
66582
6-32
0.213
0.212
1/4
66584
8-32
0.29
0.289
5/16
66586
10-24
0.312
0.311
11/32
66588
10-32
0.312
0.311
11/32
66590
1/4-20
0.344
0.343
3/8
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