#4-40 Stainless Steel Phillips Truss Head Machine Screws
Diameter - Thread Pitch: #4-40
#4-40 Phillips truss head machine screws in 18-8 stainless steel.
- Truss Head: Over-sized head with undercut bottom and low profile domed top
- Lower profile than pan head screws
- Distributes the force of the screw over a wider surface area
- 18-8 Stainless steel Phillips head machine screws are rust and corrosion resistant in applications exposed to fresh water moisture
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Product Specifications
ANSI
ANSI B18.6.3
Body Diameter
#4 (Max 0.1112 - Min 0.1061)
Class
2A
Color
Silver
Corrosion Resistant
Yes
Diameter
#4
Drive Style
Phillips
Elongation
30%
Fit
Class 2A
Grade
18-8
Hardness
100 Rockwell B
Head Diameter
Max 0.257 - Min 0.241
Head Height Max
0.069
Head Style
Truss
Material
Stainless Steel
Overall Head Height
Max 0.069 - Min 0.059
Phillips Drive
#1
Product Type
Machine Screws
Reduction
40%
Standards Met
ANSI B18.6.3
System of Measurement (Unit)
Inch
Tensile PSI
100,000 - 125,000 PSI
Thread Direction
Right Hand
Thread Pitch (Count)
40 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Yield PSI
55,000 - 75,000 PSI
