GOST 8922-69 Loaded Screws (Journals). Design

GOST 8922-69 applies to loaded screws designed for raising, lowering and holding devices suspended.

INTERSTATE STANDARD
LOADED SCREWS (JOURNALS) Design Loaded screws (journals). Design	GOST 8922-69 Supersedes GOST 8922-58

Effective date — 01.07.70. The validity period restriction was lifted by Resolution of the USSR Gosstandart dated 20.04.89 No. 1030.

1. Design and dimensions

The construction and dimensions of the screws shall conform to those shown in the drawing and table.

Dimensions in mm.

Screw designation	Application	d	L	D	D₁	D₂	S h13	l	h	h₁	r	r₁	r₂	P*, kgf	Weight, kg »
7095-0021		M12	50	32	12	25	22	22	6	5	2	4	2	120	0.085
7095-0022		M16	65	40	16	30	24	28	8	6		6		200	0.170
7095 0023		M20	80	45	20	36	27	32	10	8	3	8		300	0.314
7095-0024		M24	95	55	25	45	36	38		10			3	480	0.562
7095-0025		M30	110	65	30	55	41	45	12			10	4	720	0.918
7095-0026		M36	125	70	36	60	46	52		12	4			1100	1.374
7095-0027		M42	140	80	42	70	60	60		14		12	5	1650	2.056
7095-0028		M48	160	85	50	75	65	70	14	16				2420	2.977

* Permissible load on screw.

Note. When loaded screws are manufactured by hot stamping, non-working surfaces of the screws should not be machined.

Example of designation of a loaded screw with size d=M12:

Screw 7095-0021 GOST 8922-69

(Amended edition, Amendments No. 1, 2, 3).

2. Material

Grade 20 steel per GOST 1050-88. Substitution with other steel grades having mechanical properties not lower than those of grade 20 steel is permitted.

3. Limit deviations

Unspecified limit deviations of dimensions — see table.

4. Thread

Metric — per GOST 24705-81. Thread tolerance class — 6g per GOST 16093-81.

(Clauses 3, 4 — amended, Amendment No. 3).

5. Incomplete threads and chamfers

Dimensions of incomplete threads and chamfers for threads — per GOST 10549-80.

6. Coating

Chem. oxide, oiled (coating designation — per GOST 9.306-85). Other types of protective coatings may be used by agreement with the customer.

7. Screw sockets

Dimensions of sockets for loaded screws and other technical requirements — per GOST 4751-73.

8. Marking

Mark: the product name, its designation, the designation of this standard, and the trademark of the manufacturer. Marking is applied to the container or packaging for a batch of screws of one size.

9. Application

An example of application of loaded screws is given in the appendix.

(Added, Amendment No. 3).

Appendix (informative)

Example of application of loaded screws.