Alloy Steel Gr 8.8 Bolts

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Thabiso Steel, located in Cape Town, South Africa, is a reputable manufacturer and supplier known for its high-quality alloy steel products. With a solid reputation for reliability and precision, Thabiso Steel provides a wide array of steel solutions tailored to meet various industrial needs. Their Alloy Steel Gr 8.8 Bolts are designed to offer outstanding strength and durability, making them perfect for heavy-duty applications. With a strong commitment to excellence and customer satisfaction, Thabiso Steel plays a vital role in supporting South Africa’s manufacturing and construction industries by supplying robust, trustworthy fasteners that can handle tough environments.

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ASTM A324 Alloy Steel 8.8 J Bolt

Alloy Steel Gr 8.8 Allen Bolts

ASTM A324 Alloy Steel 8.8 Anchor Bolt

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What is Alloy Steel Gr 8.8 Bolts?

These Alloy Steel Gr 8.8 Bolts are primarily made from carbon, manganese, silicon, along with trace amounts of chromium and molybdenum to boost their strength and wear resistance. They boast a tensile strength of around 800 MPa and a yield strength of about 640 MPa, striking a great balance between toughness and ductility. Their mechanical properties ensure they can resist fatigue and perform reliably under heavy loads and stress, making them suitable for critical structural and mechanical applications.

Alloy Steel Gr 8.8 Bolts Specifications

AStm Standards	DIN ISO EN 4017 & 4014 DIN 933 / 931 & IS 1363 / 1363
Size	Diameter 20 to 100 Milimeter / Inch 3/4 to 3.1/2
Surface Finish	Zinc plated / Plain / Hot dip galvanised

Alloy Steel Gr 8.8 Bolts Chemical Composition

CLASS	MATERIAL AND TREATMENT	C	C	P	S	B	TEMPERING TEMP. [C]
CLASS	MATERIAL AND TREATMENT	MIN	MAX	MAX	MAX	MAX	TEMPERING TEMP. [C]
8.8	CARBON STEEL WITH ADDITIVES (E.G. B, MN OR CR) QUENCHED AND TEMPERED	0.15 (D)	0.4	0.025	0.025	0.003	425
8.8	CARBON STEEL QUENCHED AND TEMPERED	0.25	0.55	0.035	0.025	0.003	425

Alloy Steel Gr 8.8 Bolts Mechanical Properties

Grades	Size Range	PS [MPa]	YS (min) [MPa]	TS (min) [MPa]	Hardness [Rockwell]
Class 8.8	Under M16	580	640	800
Class 8.8	17-72	600	660	830	C23–34

Grade 8.8 Countersunk Bolt Dimension

Bolt Dia	Body Dia	Head Dia(F)			Head Height (H)		Degree of Slope
(D)	Max	Max Edge Sharp	Min Edge Sharp	Absolute Min Rounded	Max	Min
1/2	0.515	0.935	0.905	0.845	0.269	0.233	78° to 82°
5/8	0.642	1.169	1.132	1.066	0.336	0.292	78° to 82°
3/4	0.768	1.402	1.357	1.285	0.403	0.349	78° to 82°
7/8	0.895	1.637	1.584	1.511	0.47	0.408	78° to 82°
1	1.022	1.869	1.81	1.735	0.537	0.466	78° to 82°
1-1/8	1.149	2.104	2.037	1.962	0.604	0.525	78° to 82°
1-1/4	1.277	2.337	2.262	2.187	0.671	0.582	78° to 82°
1-3/8	1.404	2.571	2.489	2.414	0.738	0.641	78° to 82°
1-1/2	1.531	2.804	2.715	2.64	0.805	0.698	78° to 82°
Dimensions per ASME B18.5 1990 (R 1998)

Diameter Chart	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52
Pitch List	0.7	0.8	1	1.25	1.5	1.75	2		2.5			3		3.5		4		4.5		5
GR A Length	40	50	60	80	100	120	140	150					Grade A not applicable to these dia’s
Head Across Flat (S) Nom = Max Min GR A GR B	7	8	10	13	16	18	21	24	27	30	34	36	41	46	50	55	60	65	70	75	80
	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67	33.38	35.38	GR A not applicable to these diameters
	6.64	7.64	9.64	12.57	15.57	17.57	20.16	23.16	26.16	29.16	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1
Head Height Nom Tol + or – GR A GR B	2.8	3.5	4	5.3	6.4	7.5	8.8	10	11.5	12.5	14	15	17	18.7	21	22.5	25	26	28	30	33
	0.125	0.15			0.18				0.215				GR A not applicable to these diameters
	0.2	0.24			0.29				0.35					0.42							0.5
Across corners e Min GR A GR B	7.66	8.79	11.05	14.38	17.77	20.03	23.36	26.75	30.14	33.53	37.72	39.98	GR A not applicable to these diameters
Across corners e Min GR A GR B	7.5	8.63	10.89	14.2	17.59	19.85	22.78	26.17	29.56	32.95	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25
Thread Length (b) For lengths < or = 125ilimeter For lengths > 12ilimeter <= 200milimeter For lengths > 200ilimeter	14	16	18	22	26	30	34	38	42	46	50	54	60	66	Not specified as full thread recommended
	20	22	24	28	32	36	40	44	48	52	56	60	66	72	78	84	90	96	102	108	116
	33	35	37	41	45	49	53	57	61	65	69	73	79	85	91	97	103	109	115	121	129
Major Diameter at thread (minimum)	3.838	4.826	5.794	7.76	9.732	11.701	13.682	15.682	17.623	19.623	21.623	23.577	26.577	29.522	32.522	35.465	38.465	41.437	44.437	47.399	51.399
Major Dia at thread (maximum)	3.978	4.976	5.974	7.972	9.968	11.966	13.962	15.962	17.958

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Top Manufacturer and Supplier of Alloy Steel Gr 8.8 Bolts in Cape Town, South Africa

Jaxon Steel is a trusted manufacturer and supplier of high-quality Alloy Steel Gr 8.8 Bolts in Cape Town, South Africa. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel and Galvanized Steel, with a strong focus on Carbon Steel Sheet and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability and performance for critical industrial applications. Contact us today for all your Alloy Steel Gr 8.8 Bolts needs!

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Types of Alloy Steel Gr 8.8 Bolts

8.8 Alloy Steel Hex Head Bolt

ASTM A194 Grade 8.8 Alloy Steel Eye Bolt

AS Grade 8.8 Steel Square Bolt

ASTM A194 Gr. 8.8 Alloy Steel Lag Bolt

ASTM A194 Alloy Steel 8.8 U Bolt

Alloy 8.8 Steel Counter Sunk Bolt

Alloy Steel 8.8 Hex Bolt Size Chart, AS Grade 8.8 Hex Bolt Price in Germiston, ASTM A324 8.8 Alloy Steel Lag Bolt Weight Chart, Alloy Steel 8.8 Counter sunk Bolt Thickness, Alloy Steel Gr 8.8 J Bolts Supplier in South Africa, CrMo Gr 8.8 J Bolt Stockist in Gqeberha, Alloy Steel Gr 8.8 Allen Bolts Exporter in South Africa, Gr 8.8 CrMo Allen Bolt Price List in Cape Town

Uses of Alloy Steel Gr 8.8 Bolts

You’ll find Alloy Steel Gr 8.8 Bolts commonly used in automotive manufacturing, construction, heavy machinery, and structural engineering. Their impressive strength and toughness make them ideal for securing components that face dynamic loads, vibrations, and harsh conditions, such as engines, bridges, and industrial equipment. These bolts are crucial in applications that demand reliable fastening solutions to guarantee safety, durability, and a long service life across various sectors in South Africa.