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This product is regulated by the following standards:

DIN EN 28737 (Equivalent standards: BS EN 28737, ISO 8737, NF EN 28737, UNI EN 28737) DIN 7977

Technical data

DIN EN 28737
DIN 7977

Standard DIN EN 28737

Equivalent standards:

BS EN 28737
ISO 8737
NF EN 28737
UNI EN 28737

Taper pins with external thread, unhardened

This standard DIN EN 28737 specifies the characteristics of unhardened taper pins with external thread, and metric dimensions and nominal diameters, d, from 5 to 50 mm inclusive.

Dimensions in mm - source DIN EN 28737
Publication date: 10/1992 - Supersedes DIN 7977 02/1977
d1		5	6	8	10	12	16	20	25	30	40	50
b	min.	14	18	22	24	30	35	35	40	52	58	70
b	max.	15.6	20	24.5	27	30.5	39	39	45	46	65	78
a max		2.4	3	4	4.5	5.3	6	6	7.5	9	10.5	12
d2		M5	M6	M8	M10	M12	M16	M16	M 20	M 24	M 30	M 36
d3 max		3.5	4	5.5	7	8.5	12	12	15	18	23	28
d3 min		3.25	3.7	5.2	6.6	8.1	11.
z min		1.25	1.5	2	2.5	3	4	4	5	6	7	9

DIN EN 28737 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial items
d1	5	6	8	10	12	16	20	25	30	40	50
nominal length l
40	5.9
45	6.9	9.6
50	7.9	10.9
55		12.2	20.2
60		13.6	22.7
65			25.2	36.8
75			30.1	44.5
85				52.2	74
100				63.8	90.7	154
120					113	191	270
140						230	328	490
160						272	386	582	795
190							485	720	990	1618
220								870	1190	1948	2800
250								1020	1400	2298	3370
280									1620	2648	3900
320										3149	4630
360											5400
400											6140

Standard DIN 7977

Taper pins with external thread, unhardened

Dimensions in mm - source DIN 7977 Withdrawn
Publication date 02/1977
d1		5	6	8	10	12	16	20	25	30	40	50
b	min.	14	18	22	24	30	35	35	40	52	58	70
b	max.	15.6	20	24.5	27	30.5	39	39	45	46	65	78
a max		2.4	3	4	4.5	5.3	6	6	7.5	9	10.5	12
d2		M5	M6	M8	M10	M12	M16	M16	M 20	M 24	M 30	M 36
d3 max		3.5	4	5.5	7	8.5	12	12	15	18	23	28
d3 min		3.25	3.7	5.2	6.6	8.1	11.
z min		1.25	1.5	2	2.5	3	4	4	5	6	7	9

DIN 7977 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial items
d1	5	6	8	10	12	16	20	25	30	40	50
nominal length l
40	5.9
45	6.9	9.6
50	7.9	10.9
55		12.2	20.2
60		13.6	22.7
65			25.2	36.8
75			30.1	44.5
85				52.2	74
100				63.8	90.7	154
120					113	191	270
140						230	328	490
160						272	386	582	795
190							485	720	990	1618
220								870	1190	1948	2800
250								1020	1400	2298	3370
280									1620	2648	3900
320										3149	4630
360											5400
400											6140

Taper pins with external thread, unhardened

Dimensions in mm - source DIN 28737
Publication date: 10/1992 - Supersedes DIN 7977 02/1977
d1		5	6	8	10	12	16	20	25	30	40	50
b	min.	14	18	22	24	30	35	35	40	52	58	70
b	max.	15.6	20	24.5	27	30.5	39	39	45	46	65	78
a max		2.4	3	4	4.5	5.3	6	6	7.5	9	10.5	12
d2		M5	M6	M8	M10	M12	M16	M16	M 20	M 24	M 30	M 36
d3 max		3.5	4	5.5	7	8.5	12	12	15	18	23	28
d3 min		3.25	3.7	5.2	6.6	8.1	11.
z min		1.25	1.5	2	2.5	3	4	4	5	6	7	9

Din 28737 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial items
d1	5	6	8	10	12	16	20	25	30	40	50
nominal length l
40	5.9
45	6.9	9.6
50	7.9	10.9
55		12.2	20.2
60		13.6	22.7
65			25.2	36.8
75			30.1	44.5
85				52.2	74
100				63.8	90.7	154
120					113	191	270
140						230	328	490
160						272	386	582	795
190							485	720	990	1618
220								870	1190	1948	2800
250								1020	1400	2298	3370
280									1620	2648	3900
320										3149	4630
360											5400
400											6140

Full list of Suppliers of Taper pins with external thread, unhardened

India

Presstech India

Manufacturer of circlips, snap rings, dowel pins, washers, hose clamp

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.

Italy

AB&S-AVVITO S.r.l.

Supplier of nuts, bolts and special drawing parts, both forged and turned.

UNI EN ISO 9001:2015 certified company.

China

Anhui paiensi metal products Co. Ltd.

Manufacturer of spring pins, cotter pins and circlips

China

ASPEE and Yihai Machinery Co. Ltd

Manufacturer of dowel pins, rings, fast fixings and parallel keys.

Boneham & Turner

Manufacturer and distributor of thumb screws, knurled nuts, clevis pins and dowel pins.

Germany

Dema Präzisionsteile GmbH

Manufacturer of cylindrical pins, taper pins.

Germany

EWALD DENKER GmbH Präzisionstechnik

Manufacturer of turned fasteners with diameter from 0,8 to 30mm and dowel and taper pins with diameter from 1 to 30mm and lengths from 4 to 250mm

Italy

Distributor of retaining rings, Spiral retaining rings, wave springs, Disc springs, Washers, Elastic pins, Pins, Keys, Ground flat/bar stocks, Locking nuts, washers, Miniplast plastic parts, Metallic screws, nuts, bolts.

France