Suppliers of Flat washers, inch series

Standard ASME B18.21.1 TABLE 11

The Type A plain washers covered in this Standard are intended for general application. The type A plain washers serve to minimize embedding and to aid tightening.

Dimensions in inches : source: ASME B18.21.1 type A Plain Washers table 11 Publication date 2009
Nominal Washer Size	Series	A basic	B basic	C basic
No. 0 (0.60)	-	0.078	0.188	0.020
No.2 (0.086)	-	0.094	0.250	0.020
No.4 (0.112)	-	0.125	0.312	0.032
No.6 (0.138)	-	0.156	0.375	0.049
No.8 (0.164)	-	0.188	0.438	0.049
No. 10 (0.190)	-	0.219	0.500	0.049
3/16 (0.188)	-	0.250	0.562	0.049
No. 12 (0.216)
1/4
1/4
5/16
5/16
3/8
3/8
7/16
7/16
1/2
1/2
9/16
9/16
5/8
5/8
3/4
3/4
7/8
7/8
1
1
1-1/8
1-1/8
1-1/4
1-1/4
1-3/8
1-3/8
1-1/2
1-1/2
1-5/8
1-3/4
1-7/8
2
2-1/4
2-1/2
2-3/4
3

The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from IFI – Industrial Fastener Institute, 6363 Oak Tree Blvd Independence, OH 44131, USA.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.

Standard ASME B18.21.1 TABLE 12

Plain washers type B

Dimensions in inches : source: ASME B18.21.1 type B Plain Washers table 12
Nominal Washer Size	Series	A basic	B basic	C basic
No. 0 (0.060)	N	0.068	0.125	0.025
	R	0.068	0.188	0.025
	W	0.068	0.25	0.025
No. 1 (0.073	N	0.84	0.156	0.025
	R	0.84	0.219	0.025
	W	0.84	0.281	0.025
No. 2 (0.086)	N	0.094	0.188	0.025
	R	0.094	0.250	0.032
	W	0.094	0.344	0.032
No. 3 (0.99)	N	0.109	0.219	0.025
	R	0.109	0.312	0.032
	W	0.109	0.406	0.040
No. 4 (0.112)	N	0.125	0.250	0.032
	R	0.125	0.375	0.040
	W	0.125	0.438	0.040
No. 5 (0.125)	N	0.141	0.281	0.032
	R	0.141	0.406	0.040
	W	0.141	0.500	0.040
No. 6 (0.138)
	R
	W
No. 8 (0.164)
	R
	W
No. 10 (0.190)
	R
	W
No. 12 (0.206)
	R
	W
1/4
	R
	W
5/16
	R
	W
3/8
	R
	W
7/16
	R
	W
1/2
	R
	W
9/16
	R
	W
5/8
	R
	W
3/4
	R
	W
7/8
	R
	W
1
	R
	W
1-1/8
	R
	W
1-1/4
	R
	W
1-3/8
	R
	W
1-1/2
	R
	W
1-5/8
	R
	W
1-3/4
	R
	W
1-7/8
	R
	W
2
	R
	W
2-1/4
	R
	W
2-1/2
	R
	W
2-3/4
	R
	W
3
	R
	W

The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from IFI – Industrial Fastener Institute, 6363 Oak Tree Blvd Independence, OH 44131, USA.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.

Standard ASME B18.21.1 TABLE 13

Fender Washers

Dimensions in inches : source: ASME B18.21.1 Fender Washers table 13
Nominal Washer Size	A basic	B basic	C basic
1/8 x 5/8	0.16	0.625	0.065
1/8 x 3/4	0.16	0.75	0.065
5/32 x 7/8	0.19	0.875	0.065
3/16 x 3/4	0.19	0.75	0.065
3/16 x 1
3/16 x 1-1/4
3/16 x 1-1/2
1/4 x 1
1/4 x 1-1/4
1/4 x 1-1/2
1/4 x 1-3/4
1/4 x 2
5/16 x 7/8
5/16 x 1
5/16 x 1-1/4
5/16 x 1-1/2
5/16 x 1-3/4
5/16 x 1-5/8
5/16 x 2
3/8 x 1-1/4
3/8 x 1-1/2
3/8 x1-3/4
3/8 1-5/8
3/8 x 2
1/2 x 1-1/4
1/2 x 1-1/2
1/2 x 1-3/4
1/2 x 2
1/2 x 2-1/2

The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from IFI – Industrial Fastener Institute, 6363 Oak Tree Blvd Independence, OH 44131, USA.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.

Technical data for Flat washers, inch series

This product is regulated by the following standards:

Standard ASME B18.21.1 TABLE 11

Standard ASME B18.21.1 TABLE 12

Standard ASME B18.21.1 TABLE 13

Flat washers, inch series

Suppliers of Flat washers, inch series

Manufacturer specialized in washers. Production of 200,000 washers/day. Flat, spring, toothed, square and wave washers, etc...

Manufacturer of washers both in metric and inch sizes

Manufacturer of special cold and hot forged nuts and bolts: Metric, UNF, UNC, BSF & BSW (Whitworth) threadforms

Manufacturer of structural boltings, inch sizes

Manufacturer of inch bolts, nuts and stud bolts. Diameter from 3/4″ up to 26″ and lenghts from 1″ up to 36″