Hex socket set screws, in...

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Hex socket set screws, inch series

Dimensions in inches - source ANSI B 18.3 table 5A
Publication date: 2003 - Reprinted: 2008
D basic thread size	D thread size mm	Nr of threads x inch	Nr of threads x inch	Cup and Flat point dia.	Oval Point Radius	Cone point angle 90°± 2° for these lengths and over; 118° ± 2° for shorter lengths	Half Dog Point		T min	S nom
		Nr of threads x inch	Nr of threads x inch	A max - min	R Basic	Y	Half Dog Point
		UNC	UNF	A max - min	R Basic	Y	P max-min	Q nom
N° 0	1.52	-	80	0.033-0.027	0.045	5/64	0.040-0.037	0.15	0.050	0.028
N° 1	1.85	64	72	0.040-0.033	0.055	3/32	0.049-0.045	0.019	0.060	0.035
N° 2	2.18	56	64	0.047-0.039	0.064	7/64	0.057-0.053	0.022	0.060	0.035
N° 3	2.51	48	56	0.054-0.045	0.074	1/8	0.066-0.062	0.025	0.070	0.050
N° 4	2.84	40	48	0.061-0.051	0.084	5/32	0.075-0.070	0.028	0.070	0.050
N° 5	3.18	40	44	0.067-0.057	0.094	3/16	0.083-0.078	0.030	0.080	1/16
N° 6	3.51	32	40	0.074-0.064	0.104	3/16	0.092-0.087	0.035	0.080	1/16
N° 8	4.17	32	36	0.087-0.076	0.123	1/4	0.109-0.103	0.040	0.090	5/64
N° 10	4.83	24	32	0.102-0.088	0.142	1/4	0.127-0.120	0.045	0.100	3/32
1/4	6.35	20	28	0.132-0.111	0.188	5/16	5/32-0.19	1/16	0.125	1/8
5/16	7.94	18	24	0.172-0.156	0.234	3/8	13/64-0.195	5/64	0.156	5/32
3/8	9.53	16	24	0.212-0.194	0.281	7/16	1/4-0.241	3/32	0.188	3/16
7/16	11.11	14	20	0.252-0.232	0.328	1/2	19/64-0.287	7/64	0.219	7/32
1/2	12.7	13	20	0.291-0.270	0.375	9/16	11/32-0.334	1/8	0.250	1/4
5/8	15.88	11	18	0.371-0.347	0.469	3/4	15/32-0.456	5/32	0.312	5/16
3/4	19.05	10	16	0.450-0.425	0.562	7/8	9/16-0.549	3/16	0.375	3/8
7/8	22.23	9	14	0.530-0.502	0.656	1	21/32-0.642	7/32	0.5	1/2
1	25.4	8	12	0.609-0.579	0.75	1-1/8	3/4-0.734	1/4	0.562	9/16

Set screws FLAT POINT are mainly used where parts have to be often re-set. as they cause little or no demages to the part they bear against. Used also against hardened shafts with gound flat for better contact and as adjusting screws.

The CUP POINT set screws are mainly used against hardened shafts. die castings and other soft materials where high tightening torques are not possible.

The OVAL POINT sets are used for frequent adjustments without deformation of the part they bear against. also for seating against an angular surface.

The CONE POINT set screws are used for permanent location of the parts. Deep penetration gives highest axial and torsional holding power.

HALF DOG POINT set screws used for permanent location of one part to another. The point is normally spotted in a hole drilled in a shaft or on a flat surface milled on the shaft.

Full list of Suppliers of Hex socket set screws, inch series

The ASME B18.3 section 5A covers the general dimensions in inches of all the set screws recognized as American National Standard.

Italy

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.

Clyde Fasteners Limited

Manufacturer of socket screws and Tee Slot Bolts both metric and imperial

Earnest Machine Products

Earnest Machine is a master 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.

Italy

FASTENAL EUROPE SRL

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).

Germany

Fürniss GmbH

Distributor of aerospace fasteners

USA

Holo-Krome Company

Manufacturer of hex-socket screw in inch

USA

Kerr Lakeside Inc.

Manufacturer of socket cap screws both in metric and inch dimensions

Taiwan

Multi-Tek Fasteners & Parts Manufacturer Corp.

Manufacturer specialized in set screws with socket and slot. Inches and metric sizes

China

Ningbo Beilun Huashen Set-Screws Co.Ltd.

Manufacturer of set screws in steel, stainless steel, brass and alloys.

Torx set screws, socket set screws ball point, knurled cup point, cone point, dog point.

Germany

The portal for fasteners and fixing elements

Suppliers of Hex socket set screws, inch series

Technical data

Standard ASME B18.3 TABLE 5A

Details

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

Clyde Fasteners Limited

Earnest Machine Products

FASTENAL EUROPE SRL

Fürniss GmbH

Holo-Krome Company

Kerr Lakeside Inc.

Multi-Tek Fasteners & Parts Manufacturer Corp.

Ningbo Beilun Huashen Set-Screws Co.Ltd.

Peter Schröder GmbH

Pfitzer Verbindungstechnik Gmbh

ScrewCorner Fastener - Superstore

Set Screw & Mfg. Co.

Smith Bullough

The socket source Inc.

TUZ Maudle Cor.

YFS - Fang Sheng Screw CO. LTD.

Dimensions in mm - source ASMJE B18.3 Table 5A Publication date: 2003
D Nominal size or Basic screw Diameter	S nom	T min	R nom oval point radius	A cup end flat point diameters		P		Q
				A cup end flat point diameters		Diameter		Length
				max	min	max	min	max	min
0	0.028	0.050	0.045	0.033	0.027	0.040	0.037	0.017	0.013
1	0.035	0.060	0.055	0.040	0.033	0.049	0.045	0.021	0.01
2
3
4
5
5
6
6
8
10
1/4
5/16
3/8
7/16
1/2
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-3/4
2