Technical data for Flat washers, inch series

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This product is regulated by the following standards:

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.
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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

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

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Manufacturer of non-standard flat washers, shims and precision metal stampings, inch sizes for North America market

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International manufacturer of high quality fixings and fasteners, active since 50 years. We have a variety of nuts, bolts, washers, screws, threaded bars, clamps, rivets, wire ropes, nails and raw material in M.S. S.S 316, 304 grades and brass.

Biggest factory in China producing stainless steel washers. Fat washers, spring washers, tooth lock washers and stamping parts. Materials: 316L ,316S33,1.4462.

Distributor of fasteners

We offer logistics and inventory management and integrated supply chain management services covering a wide market of OEM fasteners (KanBan), MRO and Personal Protective Equipment (Vending Machine).

Manufacturer of standard and special washers in different materials, with internal diameter from 2.5 up to 80mm.