Haas Fastener Torque Specifications

Introduction

This document contains torque specifications for fasteners used in Haas machines.

For torque specifications on balllscrew components refer to Ballscrew - Installation Tools and Torque Specifications.

SAE ( inch ) Fastener Torque Specifications
SAE ( inch ) SI ( metric )
into Steel into Aluminum, Iron into Steel into Aluminum, Iron
Thread in-lb ft-lb in-lb ft-lb N-cm N-m N-cm N-m
#4-40 10 6 113 68
#6-32 20 12 226 136
#8-32 30 20 339 226
#10-32 40 25 452 282
1/4-20 12 8 16 11
1/4-28 15 8 20 11
5/16-18 25 15 34 20
5/16-24 25 15 34 20
3/8-16 45 25 61 34
3/8-24 50 30 68 41
7/16-14 70 45 95 61
7/16-20 70 45 95 61
1/2-13 80 50 108 68
1/2-20 110 65 149 88
5/8-11 200 125 271 170
3/4-10 275 225 373 305
1-8 450 375 610 509
1 1/2-6 600 814
SI ( metric ) Fastener Torque Specifications
SAE ( inch ) SI ( metric )
into Steel into Aluminum, Iron into Steel into Aluminum, Iron
Thread in-lb ft-lb in-lb ft-lb N-cm N-m N-cm N-m
M3 12 8 136 90
M4 40 25 452 282
M5 6 4 8 5
M6 10 6 14 8
M8 30 20 41 27
M10 50 30 68 41
M12 100 60 136 81

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.

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