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Sales Systems Limited Products and Services > Fasteners Reference Guide > Bolts / Screws > Round Head Bolts > Round Head Ribbed Neck Bolts > Item # RHRNB04375XXX  
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Item # RHRNB04375XXX, Round Head Ribbed Neck Bolt, with 0.452" Body Dia.


  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
  • Head to rib tolerance on the No. 10 through 1/2" sizes for nominal lengths 7/8 in. and shorter shall be +0.031 and -0.000.
  • The minimum radius is one half of the value shown.




Manufacturer  · Specifications  · Codes and Standards

Manufacturer

Manufacturer
Industrial Fasteners Institute


Specifications

Product
Round Head Bolts

Unit of Measure
English

Nominal Size or Basic Bolt Dia.
7/16 in

Nominal Size or Basic Bolt Dia. (Decimal)
0.4375 in

Max. Body Dia. (E)
0.452 in

Min. Body Dia. (E)
0.421 in

Max. Head Dia. (A)
0.969 in

Min. Head Dia. (A)
0.907 in

Max. Head Height (H)
0.239 in

Min. Head Height (H)
0.219 in

Head to Ribs for Lengths of 7/8 and Shorter (M)1
0.031 in

Head to Ribs for Lengths of 1 in. and Longer (M)2
0.063 in

Approx. Number of Ribs (N)
14

Min. Dia. Over Ribs (O)
0.470 in

Depth Over Ribs for Lengths of 7/8 and Shorter (P)3
0.250 in

Depth Over Ribs for Lengths of 1 in. and Longer (P)4
0.407 in

Depth Over Ribs for Lengths of 1-1/4 and Longer (P)5
0.594 in

Max. Fillet Radius (R)
0.031 in
1 Tolerance ±0.031
2 Tolerance ±0.031
3 Tolerance ±0.031
4 Tolerance ±0.031
5 Tolerance ±0.031


Codes and Standards

Codes and Standards
ASME B18.5 1990 (R1998)


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