Fastener Torque Requirements
PELLERIN MILNOR CORPORATION
BIUUUM04 (Published) Book specs- Dates: 20080506 / 20080506 / 20080506 Lang: ENG01 Applic: UUU
Fastener Torque Requirements
Torque requirements for other fasteners are specified in the specific document which describes
the assembly. If fastener torque specifications or threadlocking compound requirements in
an assembly document vary from the specifications in this document, use the assembly
document.
Figure 1: Common Bolts Used in Milnor Equipment
Bolt Head Identifying Marks Legend
.
A. SAE Grades 1 and 2, ASTM A307, and stainless steel
B. ASTM A354 Grade BC
C. SAE Grade 5, ASTM A449
D. SAE Grade 8 and ASTM A354 BD
1. Torque Values
The tables below list the standard size, grade, threadlocking compound, and torque requirements
for fasteners commonly used on Milnor
®
equipment.
Note 1: Data derived from Pellerin Milnor
®
Corporation “Bolt Torque Specification”
(bolt_torque_milnor.xls/2002096).
1.1. Carbon Steel Fasteners
1.1.1. Without Threadlocking Compound
Table 1: Torque Values for Dry Fasteners 5/16-inch and Smaller
Bolt Grade
Grade 2 Grade 5 Grade 8 Grade BC
Bolt Size Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m
1/4 x 20 66 7 101 11 143 16 126 14
1/4 x 28 76 9 116 13 163 18 -- --
5/16 x 18 136 15 209 24 295 33 258 29
5/16 x 24 150 17 232 26 325 37 -- --
24
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