What is the torque on a 3 8?

What is the torque on a 3 8?

SAE Grade 2

Bolt Size TPI Tightening Torque (ft lbs)
5⁄16 18 11
3⁄8 16 20
7⁄16 14 32

What size drill bit do you use for a 3/8 tap?

Nominal Size (inches) T P I Tapping Drill Size
1/4 19 7/16″
3/8 19 14.75mm
1/2 14 18.25mm

What is the torque on a 14mm bolt?

Metric Recommended Bolt Torque

Bolt Diameter (mm) Recommended Torque (Nm)
Class 8.8 Class 10.9
12 100 135
14 160 215
16 245 335

How much torque can a 3/8 grade 8 bolt take?

Tightening Torque Guide for Grade 5 & 8 Hex Cap Screws

Coarse Thread Coarse Thread
1/4-20 (.250) 2025 1/4-20 (.250)
5/16-18 (.3125) 3338 5/16-18 (.3125)
3/8-16 (.375) 4950 3/8-16 (.375)

What drill is used to tap a 3/8-16 hole?

Most drill charts recommend a 5/16 drill for a 3/8-16 bolt.

What size drill bit is 3 16?

Drill Bit Hole Diameters
Metric Size Fractional Size
1 mm .0394 5/32
2 mm .0787 11/64
3 mm .1181 3/16

What is the torque for a 8mm bolt?

Typical maximum recommended thightening torques for metric bolts.

Size (mm) Typical Maximum Tightening Torque (Nm)
Property Class
M8 28.8 32.3
M10 57.3 64.1
M12 99.8 112

What is the torque spec on a 8mm bolt?

For bolts with a 8mm Thread Diameter: 22Nm. For bolts with a 10mm Thread Diameter: 25Nm.

How do you measure torque with a torque wrench?

How to Measure a Torque Wrench

  1. Locate the number on the top of the bolt. Some torque bolts will have an accompanying nut.
  2. Look up the bolt’s number in the reference book.
  3. Spin the torque wrench’s handle to the correct number of foot pounds.
  4. Use the torque wrench as you would a normal ratchet.

How much more torque do I need for my tap?

Dull taps require approximately 50% more torque. For 55% and 75% thread heights, multiply above values by .75 and 1.25 respectively. Torque values for helical flute taps are approximately 70% of those shown. Torque values for chip drive taps are approximately 60% of those shown.

What are the dimensions of a self tapping screw?

82° Flat Head Dimensions Self- Tapping Screws T 80˚ 82˚ H J M A N R N M G F Protrusion gage Edge of head may be rounded or flat A A Amin FLAT HEADS FOR SELF-TAPPING-Size Types

What is the speed of tap in rpm?

TAPPING SPEEDS RPM = 3.82 x SFM Tapping speeds are Tap Diameter for general purpose taps. Consult tap FEED (IPR) = 1 manufacturer for Pitch high geometry taps. FEED (IPM) = Feed (IPR) x Speed (RPM)

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