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Machine screw flat countersunk slot UNC asme B18.6.3 ASME B18.6.3 Low carbon steel Zinc plated 1/4-20X3.

Article number
Diameter
Length
Driving features Slotted
Head shape Countersunk head
Material Low carbon steel
Thread direction Right
Surface treatment Zinc plated

Specifications

Diameter 1/4 Inch
Length 3 Inch
Driving features Slotted
Head shape Countersunk head
Material Low carbon steel
Thread direction Right
Surface treatment Zinc plated
Thread Unified National Coarse
Threads per inch 20
Info
  • Screws with diameter ≤ No.5 and length ≤ 1.1/8 inch are fully threaded, longer screws are threaded 1 inch min.
  • Screws with diameter > No.5 and length ≤ 2 inch are fully threaded, longer screws are threaded 1.1/2 inch min.

Dimensions

A (max.) 0.477
H (max.) 0.153
J (max.) 0.075
T (max.) 0.07

Standards

ASME B18.6.3

Article numbers

Article number U24540.025.0300
EAN 8715492973771
UBB 500624950027
UNSPSC 31161504

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