NAS514P440-4P Phillips Flat Head Countersunk Screw | 1/4 in. Length, 4-40 Threads

Product Description

NAS514P Series countersunk screws feature a 100 degree flat head and are made of cadmium chromate plated alloy steel material.

This Phillips head countersunk screw (EDMO# 514P440-4P) has a length of 1/4-inch and a 4-40 thread size.

Thread Class:
3a

Thread Direction:
Right-hand

Thread Length:
0.250 in

Fastener Length:
0.250 in

Head Style:
Flat countersunk

Head Diameter:
0.183 – 0.225 in

Internal Drive Style:
Cross recess type 1

Nominal Thread Diameter:
0.112 in

Thread Quantity Per Inch:
40

Minimum Tensile Strength:
125000 lb/sq. in

Countersink Angle:
99° – 101.0°

Screw Material:
Steel comp 8630

Screw Surface Treatment:
Cadmium and chromate

Thread Series Designator:
UNC