GOST R ISO 1207-2013

National standard of the Russian Federation

Slotted cheese head screws

Product grade A

Effective date 2014-07-01

1 Scope

This standard specifies the characteristics of slotted cheese head screws of product grade A with thread from M1.6 to M10 inclusive.

In cases where characteristics different from those established in this standard are required, they may be selected from current international standards, for example ISO 261, ISO 888, ISO 898-1, ISO 965-2, ISO 3506-1 and ISO 4759-1.

2 Normative references

The following normative documents are used when applying this standard:

ISO 225 — Bolts, screws, studs and nuts. Symbols and designations of dimensions.

ISO 261 — ISO general purpose metric screw threads. General plan.

ISO 898-1 — Mechanical properties of fasteners made of carbon steel and alloy steel. Part 1. Bolts, screws and studs with specified property classes, coarse thread and fine pitch thread.

ISO 965-2 — ISO general purpose metric screw threads. Tolerances. Part 2. Limits of sizes for general purpose external and internal screw threads. Medium quality.

ISO 965-3 — ISO general purpose metric screw threads. Tolerances. Part 3. Deviations for constructional screw threads.

ISO 3269 — Fasteners. Acceptance inspection.

ISO 3506-1 — Mechanical properties of corrosion-resistant stainless steel fasteners. Part 1. Bolts, screws and studs.

ISO 4042 — Fasteners. Electroplated coatings.

ISO 4753 — Fasteners. Ends of fasteners with ISO metric external thread.

ISO 4759-1 — Fasteners. Tolerances. Part 1. Bolts, screws, studs and nuts. Product grades A, B and C.

ISO 6157-1 — Fasteners. Surface discontinuities. Part 1. Bolts, screws and studs for general requirements.

ISO 8839 — Mechanical properties of fasteners. Bolts, screws, studs and nuts made of non-ferrous metals.

ISO 8992 — Fasteners. General requirements for bolts, screws, studs and nuts.

ISO 10683 — Fasteners. Non-electrolytically applied zinc flake coatings.

ISO 16048 — Passivation of corrosion-resistant stainless steel fasteners.

3 Dimensions

Dimensions of screws are given in Figure 1 and Table 1.

Figure 1 — Slotted cheese head screw

Table 1 — Dimensions, mm

The shank diameter is approximately equal to the pitch diameter or major diameter of the thread. Symbols and designations of dimensions are per ISO 225.

4 Technical requirements and referenced standards

Technical requirements are in accordance with Table 2.

Table 2

Material		Steel	Corrosion-resistant steel	Non-ferrous metal
General requirements	Standard designation	ISO 8992
Thread	Tolerances	6g
Standard designation		ISO 261, ISO 965-2, ISO 965-3
Mechanical properties	Property class	4.8, 5.8	A2-50, A2-70	By agreement
Standard designation		ISO 898-1	ISO 3506-1	ISO 8839
Tolerances	Product grade	A
Standard designation		ISO 4759-1
Finish – coating		Without finish/coating
		Requirements for electroplated coatings per ISO 4042 Requirements for non-electrolytically applied zinc flake coatings per ISO 10683	Requirements for passivation per ISO 16048	Requirements for electroplated coatings per ISO 4042
		Additional requirements, other finish or other coatings shall be agreed between the supplier and the purchaser
Surface discontinuities		Permissible surface discontinuities per ISO 6157-1
Acceptance		Acceptance inspection per ISO 3269

5 Designation

Example: a slotted cheese head screw with thread M5, nominal length 20 mm and property class 4.8 is designated as follows:

Slotted cheese head screw GOST R ISO 1207 — M5×20 — 4.8

Annex DA (mandatory). Information on the compliance of referenced international standards with the referenced national standards of the Russian Federation

Table 1

Designation of the referenced international standard	Degree of conformity	Designation and title of the corresponding national standard
ISO 225	-	*
ISO 261	MOD	(ISO 261-98) “Basic standards of interchangeability. Metric thread. Diameters and pitches”
ISO 898-1	IDT	GOST R ISO 898-1-2011 “Mechanical properties of fasteners made of carbon steel and alloy steel. Part 1. Bolts, screws and studs with specified property classes, coarse thread and fine pitch thread”
ISO 965-2	-	*
ISO 965-3	MOD	GOST 16093-2004 (ISO 965-1:1998, ISO 965-3:1998) “Basic standards of interchangeability. Metric thread. Tolerances. Clearance fits”
ISO 3269	IDT	GOST R ISO 3269-2009 “Fasteners. Acceptance inspection”
ISO 3506-1	IDT	GOST R ISO 3506-1-2009 “Mechanical properties of corrosion-resistant stainless steel fasteners. Part 1. Bolts. Screws and studs”
ISO 4042	IDT	GOST R ISO 4042-2009 “Fasteners. Electroplated coatings”
ISO 4753	MOD	GOST 12414-94 “Ends of bolts, screws and studs. Dimensions”
ISO 4759-1	IDT	GOST R ISO 4759-1-2009 “Fasteners. Tolerances. Part 1. Bolts, screws, studs and nuts. Product grades A, B and C”
ISO 6157-1	IDT	GOST R ISO 6157-1-2009 “Fasteners. Surface discontinuities. Part 1. Bolts, screws and studs for general requirements”
ISO 8839	IDT	GOST R ISO 8839-2009 “Mechanical properties of fasteners. Bolts, screws, studs and nuts made of non-ferrous metals”
ISO 8992	IDT	GOST R ISO 8992-2011 “Fasteners. General requirements for bolts, screws, studs and nuts”
ISO 10683	-	*
ISO 16048	-	*
* No corresponding national standard exists. Until it is approved, it is recommended to use the Russian translation of this international standard. The translation of this international standard is held in the Federal Information Fund for Technical Regulations and Standards. Note — The following designations for the degree of standard compliance are used in this table: — MOD — modified standards; — IDT — identical standards.

Corresponds to GOST 1491-80, DIN 84 and ISO 1207.