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Hex and square lag screws, inch series

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.1 2010 table 15 Hex lag screws
d thread size	F basic	G min	E min	H basic
no. 10	0.281	0.309	0.178	0.125
1/4	0.438	0.484	0.237	0.172
5/16	0.5	0.552	0.298	0.219
3/8	0.563	0.620	0.360	0.25
7/16	0.625	0.687	0.421	0.297
1/2	0.75	0.826	0.482	0.344
5/8	0.938	1.033	0.605	0.422
3/4	1.125	1.299	0.729	0.5
7/8	1.313	1.516	0.852	0.578
1	1.5	1.732	0.976	0.672
1-1/8	1.688	1.949	1.098	0.75
1-1/4	1.875	2.165	1.223	0.844


Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.1 2010 table 14 - Square Lag screws
d thread size	F basic=max	G min	H basic	E min
no. 10	0.281	0.372	0.125	0.178
1/4	0.375	0.498	0.172	0.237
5/16	0.5	0.665	0.203	0.298
3/8	0.562	0.747	0.25	0.36
7/16	0.625	0.828	0.297	0.421
1/2	0.75	0.995	0.328	0.482
5/8	0.938	1.244	0.422	0.605
3/4	1.125	1.494	0.5	0.729
7/8	1.312	1.742	0.594	0.852
1	1.5	1.991	0.656	0.976
1-1/8	1.688	2.239	0.75	1.098
1-1/4	1.875	2.489	0.844	1.223

Full list of Suppliers of Hex and square lag screws, inch series

Square lag and hex lag screws are presented below in tables 14 and 15.

Italy|Distributor

Buora d.p.u. S.r.l.

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.

Germany|Distributor

Pfitzer Verbindungstechnik Gmbh

Distributor of inch sized fasteners, oil and gas fasteners and turned special screws

Thailand|Manufacturer

B...

Manufacturer of hex head screws, carriage bolts and socket cap screws

India|Manufacturer

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.

Vietnam|Manufacturer

C...

Manufacturer specialized in self tapping screws, cladding self-drilling screws, machine screws and wood screws.

Diameters from 1.6 to 12mm

UK|Distributor

E...

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.

Germany|Distributor

Suppliers of Hex and square lag screws, inch series

Technical data

Details

Buora d.p.u. S.r.l.

Pfitzer Verbindungstechnik Gmbh

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