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Accurate Screw Machine

NAS517-4-18 Screws

1.6094 Inch Steel Countersunk Flat head Phillips screws manufactured with 1/4-28 UNF 3A threads.

Unit System
Specs (in standard)
Label Value
Brand Accurate Screw
Display Name NAS517-4-18
Drive Type Phillips
Finish Cadmium + Chromate
Head Diameter 0.452 in
Head Type Countersunk Flat
Length
(Overall) 		1 39/64 in
Length
(Shank/Grip) 		1.1 in
Length
(Thread) 		1/2 in
Material Steel
Max Head Diameter 0.51 in
SKU NAS517-4-18
Tensile Strength 160000 psi
Thread Size 1/4-28 UNF 3A
Specs (in metric)
Label Value
Brand Accurate Screw
Display Name NAS517-4-18
Drive Type Phillips
Finish Cadmium + Chromate
Head Diameter 11.48 mm
Head Type Countersunk Flat
Length
(Overall) 		40.88 mm
Length
(Shank/Grip) 		27.94 mm
Length
(Thread) 		12.7 mm
Material Steel
Max Head Diameter 12.95 mm
SKU NAS517-4-18
Tensile Strength 1103200 kPa
Thread Size 1/4-28 UNF 3A

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