Thread forming screws, co...

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Thread forming screws, countersunk raised head, cross recessed

Dimensions in mm - source UNI 8114 Publication date: 1993
d thread size		M 2	M 2.2	M 2.5	M 3	M 3.5	M 4	M 5	M 6	M 8
P		0.4	0.45	0.45	0.5	0.6	0.7	0.8	1	1.25
D max		3.8	4.3	4.7	5.6	6.5	7.5	9.2	11	14.5
D min		3.5	4	4.4	5.3	6.14	7.14	8.84	10.57	14.07
f ≈		0.4	0.5	0.6	0.75	0.85	1	1.25	1.5	2
k max		1.2	1.3	1.5	1.65	1.93	2.2	2.5	3	4
r1 ≈		0.2	0.25	0.25	0.3	0.35	0.4	0.5	0.6	0.8
r2 ≈		4	3.8	5.4	6	7	8	9.4	12	15
Z	recess nr	1	1	1	1	2	2	2	3	4
	m ≈	2.4	2.4	2.8	3	4	4.2	4.4	6.1	8.5
	max depth	1.35	1.35	1.73	2.01	2.06	2.31	2.51	2.92	4.38
	min depth	1.1	1.1	1.48	1.76	1.6	1.85	2.05	2.46	3.86
H	recess nr	1	1	1	1	2	2	2	3	4
	m ≈	2.8	2.8	2.7	3.1	4.2	4.5	5.3	6.8	9
	max depth	1.57	1.57	1.6	2	2.24	2.54	3.27	3.53	4.68
	min depth	1.17	1.17	1.3	1.7	1.74	2.04	2.77	3.03	4.18

UNI 8114 ≈ commercial items
d thread size	M 2	M 2.2	M 2.5	M 3	M 3.5	M 4	M 5	M 6	M 8
nominal length l
6	X	X	X
8	X	X	X	X	X
10	X	X	X	X	X	X	X
12	X	X	X	X	X	X	X
14	X	X	X	X	X	X	X	X
16	X	X	X	X	X	X	X	X	X
20			X	X	X	X	X	X	X
25			X	X	X	X	X	X	X
30				X	X	X	X	X	X
35						X	X	X	X
40						X	X	X	X
45							X	X	X
50							X	X	X

Full list of Suppliers of Thread forming screws, countersunk raised head, cross recessed

The standard specifies the characteristics of hexagon head thread forming screws for connections. This type of threaded connection, if the screw is not replaced, offers a good tear resistance, since the clearance between the screw and nut is equal to zero. In addition, the friction between mating parts further increases the unscrewing torque. For the preparation of the holes diameters see UNI 8108.

Turkey

Keba Fastenings

Distributor of fasteners and inserts: thread-forming screws, cold-formed parts, hot-formed parts and custom made products

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Italy

Kilton S.R.L.

Company specialized in the production of fasteners and fixings for industrial applications in the following fields: automotive, home appliances, mechanical, components, building industry.

Leader in the manufacturing of special fasteners.

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Viti trilobate testa cilindrica impronta croce philips

Italy

PSM CELADA Fasteners

Manufacturer and distributor of self clinching inserts for sheets metal, threaded inserts for plastic materials, wire thread inserts ELICEL®, thread forming screws for plastic and light alloys, quarter - turn locks and quick access fasteners SOUTHCO®

ELICEL - Standard wire thread insert, self locking, tangfree

China

Beijing KOJO Technology Co.,Ltd.

Founded in 2001, KOJO Fastening is a manufacturer and supplier specializing in screw fasteners and precision CNC machined parts.

We export screws, nuts, precision turned parts, and other products to customers worldwide. The KOJO Fastening team, with deep industry expertise, advanced processing equipment, technological refinement, a pursuit of excellent quality, and a customer-first vision, has made us the preferred supplier for an increasing number of international clients.

Turkey

Everfast Dis Ticaret Limited Sti.

Manufacturer of thread cutting screws, thread forming screws, screws for plastic materials and special cold forged screws

India

A...

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Taiwan

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Manufacturer and distributor of wood screws, chipboard screws, drywall screws, self drilling, thread rolling and self tapping screws. Metric and inch sizes.

China

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Afghanistan

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Taiwan

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Switzerland

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TAPTITE® trilobular screws

Germany

d...

Manufacturer of metric screws, thread rolling screws, screws for plastic materials and special screws

Italy

D...

Producer of Hexagon, machine and welding screws in low and high tensile steel.

Producer of special screws on customer requirement.

Taiwan

D...

Manufacturer of special screws

Diameters : inch #1~5/8' / Metric M2~M16

Lengths : Inch 1/4' ~ 15' / Metric 5mm~400mm

Turkey

I...

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L...

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Spain

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Producer of selftapping screws, selfdrilling, trilobular and for plastics.

Taiwan

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Manufacturer of wood screws, self drilling screws, sems screws and thread forming screws

Italy

M...

Producer of machine screws, selftapping and thread forming screws; screws for wood and plastic, screws with unloosable washers, special cold forged fasteners. Diametres from M2 to M12- lengths from 4 to 120 mm. Carbon steel and stainless steel materials

Italy

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Manufacturer and distributor of high strength fasteners, selfdrilling and selftappng scresw, Thread cutting screws, trilobular and chipboard screws

Turkey

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Italy

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Producer of screws for plastics, selfdrilling, selftapping, chipboard and thread forming screws

Turkey

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Omega Civata is a manufacturer of Taptite ® licensed product, Bolts, Screws, Rivets, Pins, Bushings, Studs, etc. The production limits are from M3x6 to M20x200. The products can be produced in steel, carbon steel, alloy steel (from 5.8 to 14.9), stainless steel (AISI 304 - 316), and other metal types.

Germany

Suppliers of Thread forming screws, countersunk raised head, cross recessed

Technical data

Standard UNI 8114

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