GOST R ISO 7045-2013 Pan Head Screws with Cross Recess

GOST R ISO 7045-2013 establishes requirements for pan head screws with type H or type Z cross recess, product grade A.

The standard is identical to the international standard ISO 7045:2011 “Pan head screws with type H or type Z cross recess — Product grade A” (ISO 7045:2011 “Pan head screws with type H or type Z cross recess - Product grade A”).

1 Normative references

The following normative documents are indispensable for the application of this standard. For dated references, only the cited editions apply. For undated references, the latest edition of the referenced documents (including any amendments) applies.

ISO 225 Fasteners — 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 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 4757 Cross recesses for screws

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

2 Dimensions

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

Figure 1. Screw dimensions

a) Type H cross recess

b) Type Z cross recess

Designation: 1 Unchamfered end

Figure 1

Table 1 — Dimensions

In millimetres

Symbols and designations of dimensions per ISO 225.

The shank diameter is approximately equal to the pitch diameter or the major diameter of the thread.

4 Technical requirements and referenced standards

Technical requirements are in accordance with Table 2.

Table 2 — Technical requirements and referenced standards

Material		Steel	Corrosion-resistant steel	Non-ferrous metal
General requirements	Standard designation	ISO 8992
Thread	Tolerances	6g
	Standard designation	ISO 261, ISO 965-2
Mechanical properties	Property class	4.8	A2-50, A2-70	-
	Standard designation	ISO 898-1	ISO 3506-1	ISO 8839
Tolerances	Product grade	A
	Standard designation	ISO 4759-1
Cross recess	Standard designation	ISO 4757
Finish – coating		Plain
		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 or other finish or coating 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 pan head screw with cross recess, thread M5, nominal length l=20 mm, property class 4.8 and type Z cross recess is designated as follows:

Pan head screw GOST R ISO 7045 - M15×20 - 4.8 - Z.

Appendix DA (informative). Information on the conformity of referenced international standards to the referenced national standards of the Russian Federation

Designation of the referenced international standard	Degree of conformity	Designation and title of the corresponding national standard
ISO 225	-	*
ISO 261	MOD	GOST 8724-2002 Basic norms 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 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 4757	NEQ	GOST 10753-86 Cross recesses for screws and wood screws — Dimensions and inspection methods”
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	IDT	GOST R ISO 10683-2013 Fasteners — Non-electrolytically applied zinc flake coatings”
ISO 16048	-	*
* No corresponding national standard exists. Until it is adopted, it is recommended to use the Russian-language translation of this international standard. The translation of this international standard is held in the Federal Information Fund of Technical Regulations and Standards. Note — This table uses the following designations for the degree of conformity of standards: - MOD - modified standard; - IDT - identical standards; - NEQ - non-equivalent standard.

Conforms to ISO 7045 and DIN 7985.