METRIC GRADE 10.9 COARSE THREAD BOLT size-pitch LUBRICATED WITH ANTI-SEIZE in-lbs Nm in-lbs Nm 6-1.00 119 13 80 9 ft-lbs Nm ft-lbs Nm 8-1.25 25 34 17 23 10-1.50 48 65 32 43 12-1.75 84 114 56 76 14-2.00 135 183 89 121 16-2.00 210 285 140 190 20-2.50 405 549 270 366 22-2.50 550 746 370 502 24-3.00 700 949 465 630 27-3.00 1,030 1,396 685 929 Related Topics . ?should be used on all fasteners unless otherwise. Typical values for countersunk heads screws with hexagon/hexalobular socket or associated nut, friction coefficient µ = 0.14, Fine thread and course threads apply 1040 Estimated with clamp load as 75% of proof load as specified in ISO 898-1 8.8. ** Torque values for 1/4" and 5/16" sizes are in inch lb. Related Topics . ; Bolt size Low Grade Grade 8.8 Grade 10.9 Grade 12.9; 6mm: 3-5 In developing this information, Fastenal has made a determined effort to present its contents accurately. Lubricating the bolts is the suggested method. Lubricate all contact areas of the bolts and washers.

Metric Recommended Bolt Torque. They should be used on all fasteners unless otherwise specified. In general the proper torque spec is usually around 65-70% of the failure torque rate. Bolt Diameter (mm) Recommended Torque (Nm) Class 8.8 Bolt Torque Calculator - Calculate required bolt torque; Improvised Torque Wrench - Improvised torque wrench with luggage scale; ISO 724 - Metric Threads - Dimensions of metric threads according ISO 724; Lubricated Bolts and Reduced Torque - Lubrication effect on bolt tension and torque 12.9 Socket Head Cap Screw. All other torque … The following table chart defines standard metric external thread size M1.6 to M18 per. Accepted formulae relating torque and tension, based on many tests are: M = P x D M = torque lbf.ft 60 P = bolt tension lbf D = bolt dia.ins Or for metric sizes: M = P x D M = torque N.m 5000 P = bolt tension Newtons D = bolt dia. Print This Page These thread sizes and classes represent bolts and screws…
The values shown in the chart are to be used as a mid-range guideline.

Fasteners - Bolts, nuts and threaded rods - torque, tension and loads; Related Documents . of the bolt proof loads specified for SAE J-429 Grade 8, and ASTM A-354 Grade BD bolts. Preloads and tightening torque for Metric ISO countersunk head steel screws with hexagon socket head or similar heads. reference guide Printed in U.S.A. • Supply Part Number: 9702365 • AS 06/14 Torque Poster For additional technical information, contact Fastenal Engineering at engineer@fastenal.com. Print this page . Metric Bolts Maximum Torque, in foot-pounds, for clean, dry threads Check your Shop Manual! It may provide satisfactory performance. Torque is only an indirect indication of tension. 10.9. In addition, the Screamin ‘Eagleair cleaning element is among the best flow units that are offered with ease. The below chart refers to usage in steel. Keep in mind that this is only an estimated value. Proper torque spec varies depending on the material, bolt grade or wether lubrication is used such as oil, wax, or anti-seize Always go to the manufacturer for proper torque … mm These formulae may be used for bolts outside the range of the tables overleaf. ANSI/ASME B1.13M-1995. Metric ISO Countersunk head steel screws Torque Table. Thread Coeff Friction Preload (Kn) Property class Tightening Torque (Nm) Property class Min Breaking Torque; A1-50 A2-70 A4-80 A1-50 A2-70 A4-80 A1-50 A1-70 The torque figures quoted have been based on a theoretical bolt load equal to 85% of the proof load of the bolting material. Title: Metric Bolts, Screws & Nuts: Tightening Torques Author: Fastener Mart Created Date: 8/12/2006 10:22:23 PM Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. Where the proof load is not quoted in the specification this has been taken as 95% of the yield stress. Torque values are based on clean, dry threads. Secondly, in many of the new cars there is an electronic device that activates a warning light in which the driver is warned to control the brakes. A lubricated fastener must have the torque values reduced 25 - 30% from the above ratings. Reduce value by 10% if threads are oiled before assembly. Approximate Torque Nm Grade 4.6 8.8 10.9 12.9

Under/over tightening of fasteners can result in costly equipment failure …

Metric Bolting Diameter Tensile Stress Area mm² Suggested Bolt Load KN. Extreme caution should be used when using a formula for torque/tension relationships. IFI-100 does not govern lock nuts above 1". M6 - M16: 800 M20 - M30: 830. These torque values ? Torque applifast.com Steel Grade SAE 5 SAE 8 Socket Head Cap Screws Property Class 8.8 10.9 12.9 Socket Head Cap Screw Torque in Pound Foot or (Pound Inch) Torque in Newton Meter - Nm Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil.

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