What are standard metric bolt sizes?

Metric clearance and tapping drill hole sizes.

Table of Contents

Size	Clearance Hole mm	Tapping Drill (std Pitch)
M6	6.5	5.0 mm
M8	9	6.75 mm
M10	11	8.5 mm
M12	14	10.25 mm

What size is M10 bolt in inches?

Table 3.

Metric	Closest Inch
M8-1.25	5/16-18 (Smaller)
M10-1.5	3/8-16 (Smaller)
M12-1.75	1/2-13 (Larger)
M14-2.0	9/16-12 (Larger)

What size are head bolts?

Hex Bolt, Lag Bolt, Square Bolt and Heavy Hex Bolt.

US Bolts
Bolt Diameter (in)	Head and Wrench Size (in)
5/8	15/16	1 1/16
3/4	1 1/8	1 1/4
7/8	1 5/16	1 7/16

What size is M12 in inches?

Tap size	Basic major dia (mm)	Basic major dia (inch)
M10 x 1.25	10mm	.3937
M12 x 1.75	12mm	.4724
M12 x 1.25	12mm	.4724
M14 x 2	14mm	.5512

How do you measure bolt head size?

How to Measure the Size of a Bolt

Step 1: Measure the shank’s diameter.
Step 2: Determine the thread pitch.
Step 3: Measure the length of the shank.
Step 4: Determine the bolt’s grade.
Step 5: Determine the shape of the bolt’s head.
Step 6: Measure the length of the threaded portion of the bolt.

What size head is a M12 bolt?

Dimensions for DIN931 Hex Head Bolt

Diameter (d)	Pitch	Across Flats (s)
M8	1.25mm	13mm
M10	1.5mm	17mm
M12	1.75mm	19mm
M14	2mm	22mm

Are M10 and 3/8 the same?

That said, they are very close, the 3/8″ bolt is about 0.019″ smaller and the pitch’s are very close so the 3/8 -16 bolt will thread in the 10mm x 1.5 but the 10 x 1.5 bolt will not fit the 3/8 but..

What size head is an M6 bolt?

METRIC SOCKET HEAD CAP SCREW -TORQUE VALUES

Size	Stress Area (mm^2)	Torque K=.2
M3-0.5	5.03	19 In-lbs
M4-0.7	8.78	45 In-lbs
M5-0.8	14.2	92 In-lbs
M6-1.0	20.1	13 Ft-lbs

What does M14 mean on a bolt?

M14 means it is metric with a 14mm outside diameter.

What size is M8 bolt head?

Dimensions for DIN931 Hex Head Bolt

Diameter (d)	Pitch	Head Depth (k)
M5	0.8mm	3.5mm
M6	1.0mm	4mm
M7	1.0mm	4.8mm
M8	1.25mm	5.3mm

What size bolt is a 10mm head?

The standard 6mm cap screw has a 10mm head.

What are the common metric bolt sizes?

Diameter: the larger the number,the larger the fastener

Pitch: the larger the number,the more coarse the thread (the fewer the threads per unit of measure); coarse is the most common metric thread and is assumed when pitch

Length: the larger the number,the longer the fastener

What is the head size of a bolt?

While the most common bolt head is hex (six-sided), some applications require a four-sided square head or the dome-shaped head of a carriage bolt. As opposed to the shank length measured in Step 3, this measurement should specify only the length of the threaded portion of the bolt.

How to measure the size of a bolt?

Turn your bolt gauge over to find the thread gauge.

Rub the bolt on different sized thread gauges. Run the threads of the bolt along the thread gauge of the appropriate type (standard or metric).

Stop when the thread gauge grabs the threads of the bolt.

Make a note of the thread pitch.

What is the standard size of a bolt?

Metric bolts are referenced using “M” sizes, such as the M8 bolt size. The size of a metric bolt is specified using pitch, diameter, and length in millimeters. For example, in M8-1.0*20, the “M” means the Metric thread designation, the digit 8 refers to the Nominal diameter (in millimeters), 1.0 refers to the pitch, and 20 refers to the length.