Fastener Head Style: LPS Bossard India
When you begin looking for fastening solutions at Bossard, you’ll observe that we hold a diverse variety of screws and bolts. One way to differentiate one from the other is through the style of head that they have. The following are some of the most familiar varieties. While head styles do have a particular purpose in building a mechanical joint, you can discover which is most suitable for your assembly by contacting your local Bossard India representative.
Countersunk Screw Heads
If a screw has angles under the head, it needs countersinking to stop the wood from separating during drilling or other force. Countersunk screw heads contain the following:
- Flatheads sit flush against the surface of the material being screwed, which makes for a cleaner appearance and stops anything from being caught on them. If you’re fastening wood or plastic laminate elements, a screw cover conceals the head entirely.
- Roundheads, which are also known as raised screw heads, use angles similar to that of flat heads, so they involve countersinking. Their domed heads appear decorative, so they are utilized where appearance is vital, such as for switch covers. Roundheads that are constructed for a socket drive are known as button heads.
- Bugle heads lessen damage to material by propagating the joint stress over a broader surface than flatheads. They’re utilized mostly for plasterboard, wood decking, and drywall. They are self-drilling, which implies they compress the surrounding drywall and paper to construct a countersunk hole during drilling.
Both flat & round
heads primarily demand a pilot hole, which is a tiny hole drilled to drive the
main screw in.
Non-Countersunk Screw
Heads
Non-countersunk screwheads are the most conventional type and have horizontal surfaces under the
head, which precludes countersinking. They are completely exposed above the
surface of the material being screwed.
·
Domed heads have a rounded head that improves
aesthetic appeal to a product.
- Button heads also have a round layout but
are utilized with socket-driven screws and Trox drive recesses.
- Pan heads are the most familiar type of flat-bottomed screw. They are flexible enough to replace for other round styles.
- Fillister heads use a slightly rounded top with a small diameter on high cylindrical sides. Their elevated profile involves a deeper drive slot than round or pan head screws.
- Truss heads are wider and slightly rounded
to produce a lower profile and larger bearing surface. They are effective for
sheet metal joints.
- Hex heads permit for more torque and
demand a socket or wrench for installation.
- Socket cap heads involve socket drive
recesses for flush installation against the surface. They give a smooth
appearance despite being non-countersunk.
- Square heads are found in bolts and
screws. They demand a wrench for installation.
Bolt Heads
Some bolt heads have forms
that are like screw heads, such as flat, round, truss, and hex. Distinctive varieties
consist of the carriage bolt, which utilizes a rounded dome with a square
underside, anchor bolts, which do not contain a head, and J & U bolts,
which look like their namesakes.
For more information, get
in touch with an expert’s team.
E india@bossard.com; india@lpsboi.com
T +91-1262 205 205;
Mobile/WhatsApp: +91-9817708334
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