Product Details

More information

• • Socket Head Cap Screws Use

    The screws are types of fasteners, in some ways similar to a bolt, typically formed from metal, and described by a helical ridge, or an external thread. Socket Head Cap Screws are utilized to secure elements by drilling in and wedging them into the material. At the same time, the thread makes grooves in the attached material that helps pull attached parts together and stop pull-out. There are several Socket Head Cap Screws for diverse types of raw materials; those usually fastened by screw hexagon head cap are materials like wood, sheet metal, and plastic.
    The industries that commonly utilize our range of cap screws include:
    Energy Sector
    Chemical Industry
    Aerospace Industry
    Defence IndustrySocket Head Cap Screws Finishes
    Screws are fasteners, usually driven by screwdrivers to fix and unfix components; they are often made of metal. They also contain a hollow in their hexagon screw heads to ensure the screwdriver ends can fit in, and turn them. Their lengths are threaded to enable them to fit into wooden materials, walls, and metals.

    • Zinc and Chromate Finish: Silvery appearance that provides corrosion-resistance for Socket Head Cap Screws.
    • Plain Finish: Socket Head Cap Screws without any coating.
    • Zinc Plated: Socket Head Cap Screws covered with zinc.
    • Zinc and Yellow Chromate: Offers better resistant to corrosion to Socket Head Cap Screws than Chromate.
    • Hot Dipped Galvanized(HDG) Socket Head Cap Screws: Gives superior resistance to decay due to being dipped in molten zinc.

• • Hex Bolt Dimensions

    As hex bolt cap screw suppliers, we have many people that ask us if the names of hex cap screws and hex bolts are interchangeable, and they are not.
    A hex bolt is less precise, and as a result, it is cheaper than a hexagon socket head cap screw. Added features of hex cap screws that make them better is that they are made with a higher degree of preclusion (i.e. tighter tolerance) and also maintain a washer facing below the head of the bolt.
    Hex bolts are used to secure two or more components together to assemble them together. A bolt has a head and external threads that together form a mechanical device designed for fastening.
    The size and length of hex bolt fasteners are specified in inches, commonly fractional instead of decimal. Their sizes refer to the trivial diameter of the bolt head, while the length is simply to show long a bolt is. Hex bolts generally range from 1/4″ to 4″ in diameter, and 1/4″ to 1 1/2″ sizes are customarily available.The fasteners are manufactured to universal specifications known across industries globally. If you are looking for a grade 8 hex cap screw or a grade 5 hex cap screw, these dimensional measurements will be the same. Only the raw material that they are made from will be different.

• • Drawing and Dimensions

    Murlidhar hexagon socket head cap screw is one of the strongest threaded fasteners with higher pressures, higher stresses and higher speeds demand stronger, more reliable joints and stronger, more reliable fasteners to hold them together. They have the extra strength and fatigue resistance required for total reliability in high strength fastening. This International Standard specifies the characteristics of hexagon socket head cap screws with coarse pitch thread from M16 up to and including M64 and product grade A.

    The Socket is deep enough for full tightening without cracking, but not deep enough to weaken the head area and cause failure. A scientifically designed radius at the root is responsible for adding both fatigue resistance and strength in the screw most prone to failure. Fillet at the junction of head and shank gives more then double fatigue life in the head area without reduction of critical bearing area. Heads are correctly proportioned to screw size, assuring full clamping force without indentation and loss of preload.

    Physical properties of higher stress levels are a direct result of customised heat treatment. Material selection in steel from lot to lot require that each “heat” of Murlidhar socket head cap screws be heat treated in accordance with its specific chemistry. Every lot of steel is pre-tested, and its treatment personalized to produce a uniform product.

    The head of hexagon socket head cap screw is forged because it forms metal produce uniform grain flow which makes heads stronger by compressing the metal. The Head area is strictly perpendicular to the screw body to avoid strains and misalignment.

    Drawing and Dimensions
    For more details, please refer IS 2269 or ISO 4762
    

    Dimensions in millimetres
    Thread (d)		M16	M20	M24	M30	M36	M42	M48	M56	M64
    Pa		2	2.5	3	3.5	4	4.5	5	5.5	6
    bb	ref.	44	52	60	72	84	96	108	124	140
    dk	Max.c	24.00	30.00	36.00	45.00	54.00	63.00	72.00	84.00	96.00
    	Max.d	24.33	30.33	36.39	45.39	54.46	63.46	72.46	84.54	96.54
    	in.	23.67	29.67	35.61	44.61	53.54	62.54	71.54	83.46	95.46
    da	Max.	17.7	22.4	26.4	33.4	39.4	45.6	52.6	63	71
    ds	Max.	16.00	20.00	24.00	30.00	36.00	42.00	48.00	56.00	64.00
    	Min.	15.73	19.67	23.67	29.67	35.61	41.61	47.61	55.54	63.54
    ee, f	Min.	15.99	19.43	21.73	25.15	30.85	36.57	41.13	46.83	52.53
    lf	Max.	1.45	2.04	2.04	2.89	2.89	3.06	3.91	5.95	5.95
    K	Max.	16.00	20.00	24.00	30.00	36.00	42.00	48.00	56.00	64.00
    	Min.	15.57	19.48	23.48	29.48	35.38	41.38	47.38	55.26	63.26
    r	Min.	0.6	0.8	0.8	1	1	1.2	1.6	2	2
    s f	Nom.	14	17	19	22	27	32	36	41	46
    	Max.	14.21	17.23	19.27	22.27	27.27	32.33	36.33	41.33	46.33
    	Min.	14.032	17.05	19.06	22.08	27.06	32.08	36.08	41.08	46.08
    t	Min.	8	10	12	15.5	19	24	28	34	38

    a- P is the pitch of the thread.
    b- For lengths between the bold stepped lines in the unshaded area.
    c- For plain heads.
    d- For knurled heads.
    e- emin=1.14 smin
    f- Combined gauging of socket dimensions e and s.

• Mechanical & Physical Properties

  Mechanical or Physical Property		Property Class 12.9
  Tensile strength, N/mm2 (Mpa)	Nom,	1200
  	Min.	1220
  0.2% Proof Stress, N/mm2 (Mpa)	Nom,	1080
  	Min.	1100
  % Elongation after facture, %	Min.	8
  % Reduction of area, %	Min.	44
  Rockwell Hardness, HRC	Min.	39
  	Max.	44

Frequently Asked Questions

• • What is a hexagon socket head cap screw?

    A hexagon head screw has internal wrenching characteristics that allow them to be used in locations and applications with confined space.

• • Which screws are better Allen screw or hexagon head?

    Both have distinct characteristics ideal for specific purposes. Hexagonal bolts are used when strength is critical, and the bolt will frequently be removed, e.g., machine attachments. While Allen bolts are used where bolts are fastened inside a narrow opening.

• What are the benefits of hexagon socket head cap screw? .

  As compared to other fasteners, fewer socket screws of the same size can obtain the equal clamping force at a joint. The use of a screw hexagon head cap results in drilling fewer holes. We provide 100 % in house production of all our fasteners.