Fasteners for railways | Šroubárna Kyjov, spol. s r.o

SELF-TAPPING SLEEPER SCREWS

Self-tapping sleeper screws (also called screw spikes, chair screws, coach screws) are one of the fasteners in the rail fastening system. We adapt their designation, head shape, thread profile and surface treatment to our customer's requirements.

Technical parameters

Attribute	Parameter	Range of values	Unit
Dimensions	A – Head diameter	30 – 60	mm
	B – Minor thread diameter	13 – 20	mm
	C – Major thread diameter	18 – 28	mm
	D – Length of shaft without thread	15 – 150	mm
	E – Nominal length	110 – 250	mm
Material	Steel	-	-
Mechanical properties	Class	5.6, 8.8	-
Mechanical properties	Standard	ISO 898-1	-
Surface treatment	Hot-dip galvanization	ISO 1461, ISO 10683	-
Surface treatment	Electrogalvanization	ISO 4042, ISO 2081	-

Drawing

Dimensional diagram of Self-tapping sleeper screws

Photos

Certifikáty

SLEEPER BOLTS WITH TRAPEZOIDAL THREAD

Sleeper bolts with trapezoidal thread differ from self-tapping screws by the design of the threaded section, which is produced by cold working.

Technical parameters

Attribute	Parameter	Range of values	Unit
Dimensions	A – Length of shaft without thread	25 – 355	mm
	B – Nominal length	113,5 – 430	mm
	C – Head diameter	44 – 60	mm
	Tr – rozměr závitu	22 – 25	mm
Material	Steel	-	-
Mechanical properties	Class	5.6, 8.8	-
Mechanical properties	Standard	ISO 898-1	-
Surface treatment	Hot-dip galvanization	ISO 10684, ISO 10683	-
Surface treatment	Electrogalvanization	ISO 4042, ISO 2081	-

Drawing

Dimensional diagram of Sleeper bolts with trapezoidal thread

Photos

Certifikáty

CLAMP BOLTS

Clamp bolts (also called T-head bolts, tensioning bolts, clip bolts) are used for the fastening of rail superstructure. We adapt their designation, head shape and surface treatment to our customer's requirements.

Technical parameters

Attribute	Parameter	Range of values	Unit
Dimensions	A – Bolt length	65 – 150	mm
	B – Thread length	min. 30	mm
	C – Head width	20 – 30	mm
	D – Head length	45 – 55	mm
	M – Thread size	M18 – M27	mm
Material	Steel	-	-
Mechanical properties	Strength class	5.6, 8.8	-
Mechanical properties	Standard	ISO 898-1	-
Surface treatment	Hot-dip galvanization	ISO 10684	-
Surface treatment	Electrogalvanization	ISO 4042, ISO 2081	-

Drawing

Photos

Certifikáty

FISH BOLTS

Fish bolts are used to connect rails using fishplates (also called splice bars, joint bars).

Technical parameters

Attribute	Parameter	Range of values	Unit
Dimensions	L – Bolt length	60 – 500	mm
Dimensions	M – Thread size	M18 - M30	mm
Material	Steel	-	-
Mechanical properties	Strength class	5.6, 8.8, 10.9	-
Mechanical properties	Standard	ISO 898-1	-
Surface treatment	Hot-dip galvanization	ISO 10684, ISO 10683	-
Surface treatment	Electrogalvanization	ISO 4042, ISO 2081	-

Drawing

Dimensional diagram of a fish bolt, DIN 5903 type A

Dimensional diagram of a fish bolt, DIN 5903 type B

Dimensional diagram of a fish bolt, DIN 5903 type C

Dimensional diagram of a fish bolt, PN 02 1321

Dimensional diagram of a fish bolt, PN 02 1353

Dimensional diagram of a fish bolt, PN 02 1357, PN 02 1359

Dimensional diagram of a fish bolt, PN 02 1358

Dimensional diagram of a fish bolt, PN 02 1360

Dimensional diagram of a fish bolt, PN 02 1362

Photos

Certifikáty

HEXAGONAL NUTS

Our hexagonal nuts are mainly used in rail fastening systems in combination with clamp bolts.

Technical parameters

Attribute	Parameter	Range of values	Unit
Dimensions	s – Spanner size	30 – 46	mm
	m – Nut height	15 – 30	mm
	D – Thread diameter	M18 – M30	mm
Material	Steel	-	-
Mechanical properties	Strength class	5, 6, 8, 10	-
Mechanical properties	Standard	ISO 898-2	-
Surface treatment	Phosphating	EN 12476	-
	Electrogalvanization	ISO 4042, ISO 2081	-
	Hot-dip galvanization	ISO 10684, ISO 10683	-

Drawing

Photos

Certifikáty

FLANGE NUTS

Flange nuts (sometimes also called lug nuts) for use in the engineering industry.

Technical parameters

Attribute	Parameter	Range of values	Unit
Dimensions	s – Spanner size	30 – 46	mm
	m – Nut height	15 – 30	mm
	c – Flange thickness	4 - 8	mm
	D – Thread diameter	M18 – M30	mm
	d_c – Flange diameter	35 - 50	mm
Material	Steel	-	-
Mechanical properties	Strength class	5, 6, 8, 10	-
Mechanical properties	Standard	ISO 898-2	-
Surface treatment	Phosphating	EN 12476	-
	Electrogalvanization	ISO 4042, ISO 2081	-
	Hot-dip galvanization	ISO 10684, ISO 10683	-

Drawing

Photos

Certifikáty

LOCK NUTS

Lock nuts with a polymer insert for industrial use

Technical parameters

Attribute	Parameter	Range of values	Unit
Dimensions	s – Spanner size	38	mm
	m – Nut height	19 - 20	mm
	h – Total nut height	22 - 26	mm
	D – Major thread diameter	M22 – M24	mm
Material	Steel	-	-
Mechanical properties	Strength class	5	-
Mechanical properties	Standard	ISO 898-2	-
Surface treatment	Phosphating	EN 12476	-
Surface treatment	Electrogalvanization	ISO 4042, ISO 2081	-