Brass Hex Bolt with collar
These threaded machine bolts, sometimes referred to as hexagonal head bolts or Hex Bolt With Collar , are used with nuts or in tapped holes. Hex head bolts, as their name implies, have brass heads that are hexagonal (6 sides).
Hex Head Bolts Head & Thread Dimensions
Technical dimensions for the head and threads of all grades and materials of hex cap screws. Body diameter, width across the flats, width across the corners, head height, and thread length are considered technical parameters.
There are two varieties of hex head bolts: completely threaded and partly threaded.
When a completely threaded hole and a fully threaded hex head bolt are compatible, the latter is utilized.
In order to increase holding strength when force is applied to the structure being fastened, partially threaded bolts are more stiff and have a section under their heads that is not threaded.
Hex Head Bolts are not Hex Cap Screws
Mistaking a hex cap screw for a hex bolt is very common, but the two fasteners differ in many ways, including how they are used and installed.- Hex bolts are installed by turning a nut to tighten the fastener. Hex cap screws are installed into tapped holes by turning the head to assemble and tighten.
- Hex bolts have neither the washer face nor chamfered point. Hex cap screws feature a washer face on the bearing surface and the chamfered point.
- Hex bolts are often used in the construction industry, where mechanical properties are more critical than dimensional tolerances. Hex cap screws are commonly used for precision applications where tight tolerance is required.
Product Description
The standard thread length of a hex head bolt:
Bolt lengths ≤ 6″: Thread length = (2 X diameter) + 1/4″
Bolt lengths > 6″: Thread length = (2 X diameter) + 1/2″
Note: Most stock hex bolts 10″ and longer will have 6″ of thread.
The basic specs of a hex head bolt:
Diameters: 1/2 – 1″
Grade: ASTM A307 Grade A, F1554 Grade 36
Lengths: 30″ maximum
Finish: Plain and hot dip galvanized
Sample Time: Available in 5-10 days for different items.
Drawing Format: CAD / PDF / DWG / IGS / STEP.
Packaging: Standard package, Carton box or Pallet, As per customized specifications
Shipping: DHL, FEDEX, UPS and By Sea or as per client’s requirements.