Manufacturers & Suppliers of Hardened steel circular and circular clipped washers, hardened beleved washers, compressible washers-type direct tension indicators. Inch series (F436, F959)
This product is regulated by the following standards:
Full List of Suppliers
Founded in 1969, Buora D.P.U. is a distributor certified following ISO 9001.
The company offers the complete range of high strength fasteners, ready on stock, both coarse and fine pitches with metric and inch threads.
Distributor of prestigious brands such as UNBRAKO and NORD-LOCK, for Buora D.P.U. the service always comes first, therefore there is not minimum quantity required.
Distributor of inch sized fasteners, oil and gas fasteners and turned special screws
Distributor of high tensile screws and nuts in stainless steel and alloy steel
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.
Distributor of fasteners for the industrial distribution market. We aim to create the best customer experience possible by putting our customers’ needs first. With a wide range of products and services, we provide customers with more options, making managing their fastener program easier.
Manufacturer of special cold and hot forged nuts and bolts: Metric, UNF, UNC, BSF & BSW (Whitworth) threadforms
Leading manufacturer of standard and special high tensile fasteners, supplier of leading customers in the automotive and industrial sectors.
Manufacturer of corrosion Resistant fasteners for the Energy, Petrochemical & Infrastructure sectors.
Technical data
Hardened steel circular and circular clipped washers, hardened beleved washers, compressible washers-type direct tension indicators. Inch series (F436, F959)
This product is regulated by the following standards:
Standard ASME B18.2.6
The table 3 of ASME B18.2.6 standard covers the general dimensions in inches of the heavy hex nuts ASTM A563 and ASTM A194.
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Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.6 table 3 heavy hex nuts for use with structural bolts |
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d Thread size
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Nr. of threads x inch |
F nom | G min | H nom | ||
| inch | mm | UNC | UNF | |||
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1/2
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12.70 | 13 | 20 | |||
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5/8
|
15.88 | 11 | 18 | |||
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3/4
|
19.05 | 10 | 16 | |||
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7/8
|
22.23 | 9 | 14 | |||
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1
|
25.40 | 8 | 12 | |||
| 1-1/8 | 28.58 | 7 | 12 | |||
| 1-1/4 | 31.75 | 7 | 12 | |||
| 1-3/8 | 34.93 | 6 | 12 | |||
| 1-1/2 | 38.10 | 6 | 12 | |||
Details
Hardened steel circular and circular clipped washers, hardened beleved washers, compressible washers-type direct tension indicators. Inch series (F436, F959)
|
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.6 2011 table 4 hardened steel circular and circular clipped washers |
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nominal washer size
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I.D.nominal | O.D nominal | T nom | E min | |
| inch | mm | ||||
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1/2
|
12.70 | ||||
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5/8
|
15.88 | ||||
|
3/4
|
19.05 | ||||
|
7/8
|
22.23 | ||||
|
1
|
25.40 | ||||
| 1-1/8 | 28.58 | ||||
| 1-1/4 | 31.75 | ||||
| 1-3/8 | 34.93 | ||||
| 1-1/2 | 38.10 | ||||
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Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.6 2011 table 5 beveled washers with slope or taper in thickness 1:6 |
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nominal washer size
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I.D.nominal | A min | T ref | E min | |
| inch | mm | ||||
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1/2
|
12.70 | ||||
|
5/8
|
15.88 | ||||
|
3/4
|
19.05 | ||||
|
7/8
|
22.23 | ||||
|
1
|
25.40 | ||||
| 1-1/8 | 28.58 | ||||
| 1-1/4 | 31.75 | ||||
| 1-3/8 | 34.93 | ||||
| 1-1/2 | 38.10 | ||||
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Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.6 2011 table 6 compressible washers direct tension indicators |
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direct tension indicator size
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all types |
type 325 | type 490 | ||||||||
| inch | mm | A min | B max | C max |
Nr protusions (equally spaced) |
E min | F max | C max | Nr protusions (equally spaced) | E min | F max |
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1/2
|
12.70 | ||||||||||
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5/8
|
15.88 | ||||||||||
|
3/4
|
19.05 | ||||||||||
|
7/8
|
22.23 | ||||||||||
|
1
|
25.40 | ||||||||||
| 1-1/8 | 28.58 | ||||||||||
| 1-1/4 | 31.75 | ||||||||||
| 1-3/8 | 34.93 | ||||||||||
| 1-1/2 | 38.10 | ||||||||||