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Hexagon socket countersunk head screw UNC ASME B18.3 Alloy steel ASTM F835 Zinc plated #4-40X1 Inch

  1. ART NR U07415.011.0100
  2. EAN 8717077368149
  3. UBB 500621034734
  4. UNSPSC 31161518

Price per 

Package: 100
Full Box only
  • 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 thread sizes up to and including 1 inch is 3A, plating can cause thread fit problems.
Diameter (inch) #4
Driving features Hexagon socket
Head shape Countersunk head
Length (L) (Inch - ft) 1 Inch
Material Alloy steel
Material technical ASTM F835
Thread direction Right
TPI 40
Surface treatment Zinc plated
Thread Unified National Coarse
  • ft = fully threaded
ASME B18.3
  1. Select other sizes


A 0.255
H 0.083
J 1/16
LT (min.) 0.75
Threads per inch 40