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Sales Systems Limited Products and Services > Fasteners Reference Guide > Bolts / Screws > Square and Hex Bolts and Screws > Square Lag Screws > Item # SLS03125XXX  
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Item # SLS03125XXX, Square Lag Screw, 5/16" Nominal Dia.






Manufacturer  · Specifications  · Codes and Standards  · Threads Per Inch  · Thread Dimensions

Manufacturer

Manufacturer
Industrial Fasteners Institute


Specifications

Product
Square and Hex Bolts and Screws

Unit of Measure
English

Nominal Size or Basic Product Diameter
5/16 in

Nominal Size or Basic Product Diameter (Decimal)
0.3125 in

Max. Body or Shoulder Dia. (E)
0.324 in

Min. Body or Shoulder Dia. (E)
0.298 in

Basic Width Across Flats (F)
1/2 in

Max. Width Across Flats (F)
0.500 in

Min. Width Across Flats (F)
0.484 in

Max. Width Across Corners (G)
0.707 in

Min. Width Across Corners (G)
0.665 in

Basic Height (H)
13/64 in

Max. Height (H)
0.220 in

Min. Height (H)
0.186 in

Min. Shoulder Length (S)
0.125 in

Max. Radius of Fillet (R)
0.03 in

Min. Radius of Fillet (R)
0.010 in


Codes and Standards

Codes and Standards
ASME B18.2.1 1996


Threads Per Inch

Threads Per Inch
9


Thread Dimensions

Pitch (P)
0.111 in

Flat at Root (B)
0.048 in

Depth of Thread (T)
0.043 in

Root Dia. (D1)
0.227 in


 MORE IMAGES 

·  Cone Point

·  Detail of Threads

·  Length Tolerances for Square and Hex Bolts and Screws


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