Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.656in. ⁓21/32"
1.829in. and 1.859in. ⁓1-55/64"
flat countersunk
0.826in. and 0.888in.
0.4672in. first shoulder and 0.4682in. first shoulder
1.178in. first shoulder and 1.198in. first shoulder
HIGH-Torque
0.4375in. ⁓29/64"
20
160000 pounds per square inch
99.0 degrees and 101.0 degrees
round first shoulder
steel comp 4140 or steel comp 4340 or steel comp 8740
MIL-S-5626 mil spec 1st material response or MIL-S-5000 mil spec 2nd material response or MIL-S-6049 mil spec 3rd material response
cadmium and chromate
QQ-P-416 TY2 CL2 fed spec 1st treatment response
unjf
80205-NAS1607 professional/industrial association standard
1HD
Unjf
Steel comp 4140 or steel comp 4340 or steel comp 8740
20
Flat countersunk
0.656 inches maximum
Right-hand
3a
FSC 5305 ⁓ Screws
unjf thread series cadmium surface treated 20 thread quantity per inch flat countersunk head style 0.656" thread length right-hand 3a thread class
Nothing similar to this part number was found in our inventory
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. it has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. the head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. no. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. a locking feature may be incorporated in the design of the head or threads. for items which are both shouldered and have an externally relieved body, use screw, externally relieved body. for items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. excludes bolt, internal wrenching and screw, cap, socket head.