Machine Bolt Torque Values

The values are just smaller. The torque required to achieve this force with a dry bolt is calculated to 2022 Nm.

Pin On Electrical Circuit Diagram

Below is a list of bolt torques compiles from various machine tool manufacturers.

Machine bolt torque values. Torque values for 14 and 516-in series are in inch-pounds. Lbs Nm TO CONVERT INTO MULTIPLY BY TORQUE CONVERSION FACTORS Inch Pounds Foot Pounds 00835 Inch Pounds Newton Meters 01130 Inch Pounds Kg Meters 00115 Inch Pounds Kg Centimeters 11519 Foot Pounds Inch Pounds 12000 Foot Pounds Newton Meters 13560 Foot Pounds Kg Meters 01382 Foot Pounds Kg Centimeters 138240. 1 can be rearranged to express bolt force as.

Calculating the suggested tightening torque is the same for machine screws as it is for bolts. For dry bolts increase the torques with approximately 30. Recommended Bolt Torque Table Size Recommended Torque Grade 2 Grade 5 Grade 8 18-8 SS Bronze Brass Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine 4 - - - - - - 52 - 48 - 43 - 6 - - - - - - 96 - 89 - 79 - 8 - - - - - - 198 - 184 - 162 -.

Calculating the suggested tightening torque is the same for machine screws as it is for bolts. F T K d 1 - l 100 1a Example - Dry vs. Clamp load calculated as 75 of the proof load when specified by the standard.

1 inch 254 mm The values are for slightly lubricated bolts. T Torque inch pounds and Newton meters. T DKP Where.

85000 psi 34 to 1-12 dia proof strength. The torque values can only be achieved if nut or tapped hole has a proof load greater than or equal to the bolts minimum ultimate tensile strength. The values are just smaller.

Stud vs bolt. 1Nm 9 inlb. DETERMINING TORQUE The general equation for bolt load based on applied torque is T KF i D b where K torque coefficient.

Metric Bolts Screws Nuts. In general the proper torque spec is usually around 65-70 of the failure torque rate. A ds00008 d scale none wt lbs sheet 4 of 14 dcf0045 rev b torque values for light machine oil lubricated bolts stainless astm f593g f593h stainless astm f593u ts.

30 rows The following suggested tightening torques provide an excellent starting point for determining. Torque Values Chart for Common Bolt Sizes in-tpi 1 N m 2 ft-lb 3 N m ft-lb N m ft-lb mm x pitch 4 N m ft-lb N m ft-lb N m ft-lb 14 - 20 74 56 11 8 16 12 8 436597. 27 rows Bolt Tension Recommended Corresponding to Assembly 65 of Proof Load Torque kN Nm 767 8 109 13.

The value of R is assumed to be equal to 20 for dry unplated. Service Manual Supplement July 2016 Fastener Torque Specifications 4 SAE and Metric Fastener Torque Specifications SAE Plain and Zinc Plated Hex and Socket Head Cap. ASTM A307 utilized 75 of 36000 PSI.

Bolt torque requirements metric and standard. Tightening Torque K 015 K 017 K 020 K 015 K 017 K 020 K 015 K 017 K 020 K 015 K 017 K 020 4 07 333 79 in-lbs 89 in-lbs 105 in-lbs 858 203 in-lbs 23 in-lbs 27 in-lbs 1228 29 in-lbs 329 in-lbs 387 in-lbs 1436 339 in-lbs 384 in-lbs 452 in-lbs. Bolt torque specification charts.

Fastener Mart Created Date. The studs do not move during nut tightening and because of that the stud stretches in one axis which provides much more correct clamping forces. T Torque in inch pounds inlb D Nominal thread major diameter K Nut factor P Pounds of clamping force There are strength levels of inch machine screws and each has a different recommended tightening value.

The tightening torques below are for imperial US bolts with tension approximately 70 of yield strength. Actual values of R can vary between 05. Calculating machine screw tightening torque values The most widely used formula for calculating threaded fastener tightening torque is.

T Torque ft lb D Nominal Diameter in P Clamp Load lb R Tightening Coefficient. The proof load for a M30 metric bolt grad 88 is 337000 N. T DKP Where.

TORQUE CONVERSION - Ft. Strength clamping force torque. Conditions and equal to 15 for lubricated including plated conditions.

The below chart refers to usage in steel. As discussed earlier the stud obtains much more accurate torque values and thats mainly because the studs dont twist during tightening. Calculating machine screw tightening torque values The most widely used formula for calculating threaded fastener tightening torque is.

100000 psi to 58 dia tensile strength 135000 psi proof strength 59000 psi proof strength 95000 psi ts.

Bolt Torque Chart Showing Suggested Torque Values And Corresponding Bolt Clamping Forces For Various Sizes And Specifications Of Fastener Chart Tool Chart Bolt