Automotive Racing Products, Inc.

The World Leader in racing fastener technology since 1968

ARP General Torque recommendations

Listed below are the general torque recommendations for bulk 5-packs and engine/accessory fasteners. Recommended torque is equal to 75% of the fastener's yield strength. Simply read down to the correct fastener size, then across to find the torque value for your application. Always use ARP Ultra-Torque® and follow the instructions below to ensure the correct preload is created.

  1. Apply ARP Ultra-Torque® to fastener threads and the underhead of the bolt or underside of the nut.
  2. Install fastener hand tight.
  3. Use torque wrench to install fastener to the torque value from the chart below.
    NOTE 1    : The torque values represented here are intended to be for general information only, not for specific installations.
    NOTE 2: On specific installations, when the supplied instructions deviate from the torque values listed here,
    always follow the specific instructions packaged with each kit.

Recommended Torque to Achieve Optimum Preload (Clamping Force) Using ARP Ultra-Torque® Fastener Assembly lubricant*

Note: For those using Newton/meters as a torquing reference, you must multiply the appropriate ft./lbs. factor by 1.356

Fastener Diameter

Fastener Tensile Strength
170,000 / 180,000 (PSI)
( 1,171 Nmm2 )		 190,000 / 200,000 (PSI)
( 1,300 Nmm2 )		 220,000 (PSI)
( 1,515 Nmm2 )
TORQUE*
( Ft. / Lbs. )		 PRELOAD
( Lbs. )		 TORQUE*
( Ft. / Lbs. )		 PRELOAD
( Lbs. )		 TORQUE*
( Ft. / Lbs. )		 PRELOAD
( Lbs. )
1/4″ 12 3,492 14 3,967 16 4,442
5/16″ 24 5,805 28 6,588 32 7,371
3/8″ 45 8,622 50 9,782 55 10,942
7/16″ 70 11,880 80 13,470 90 15,060
1/2″ 110 16,391 125 18,515 140 20,639
9/16″ 160 21,220 180 23,944 200 26,668
5/8″ 210 26,372 240 29,756 270 33,140
6 mm 11 3,359 13 3,814 15 4,269
8 mm 24 5,801 28 6,581 32 7,361
10 mm 54 9,970 62 11,305 70 12,640
11 mm 72 12,184 82 13,961 92 15,738
12 mm 98 14,472 112 16,949 125 19,425
14 mm N/A N/A 184 22,771 205 25,730
16 mm N/A N/A 244 29,664 272 33,519

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