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3a
RIGHT-Hand
round
fire fighting equipment
0.250in. ⁓1/4"
+0.20 to 0.25in.
20
screw, round head, 1/4-20 x 3/8 lg s.s.
steel corrosion resisting
unc
Unc
20
Round
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
Used on fire fighting equipment. unc thread series screw, round head, 1/4-20 x 3/8 lg s.s. 20 thread quantity per inch round head style 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, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.