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Hexagon socket head shoulder screw UNC ASME B18.3 Stainless steel ASTM F879 304 (1/4)5/16X1/4

Article number
Length
Driving features Hexagon socket
Head shape Cylindrical Knurled
Material Stainless steel
Material technical ASTM F879 304
Thread direction Right
Thread Unified National Coarse

Specifications

Length 1/4 Inch
Driving features Hexagon socket
Head shape Cylindrical Knurled
Material Stainless steel
Material technical ASTM F879 304
Thread direction Right
Thread Unified National Coarse
Info
  • All dimensions in above table are in inches.
  • Marking of these screws is not mandatory.
  • Due to the unfavourable head geometry these fasteners have reduced loadability.
  • Attention: As the thread tolerance class for these screws is 3A, plating can cause thread fit problems.

Dimensions

A (max.) 0.438
D 0.3125
D1 0.25
E 0.438
H (max.) 0.219
J 0.15625
Threads per inch 20
D (min.) 0.3085
D (max.) 0.3105

Standards

ASME B18.3
BS 2470

Article numbers

Article number U51044.031.0025
EAN 8715492895813
UBB 500624176185
UNSPSC 31161605
Manufacturer article nr  (1/4-20) 5/16 INX1/4 IN

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