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![]() ![]() A Hill Lock® screw is a free running screw that locks itself in place with
serrations or locking teeth under the head. The most popular style of
Hill-Lock® is an indented flange head. | |||
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![]() ![]() All Hill Fastener products are traceable, back to the specific heat lot of steel used in the manufacturing process. Material, chemical and physical certificates are kept on file and can be provided upon request. Inspection is performed during each phase of production and the documentation becomes part of the permanent file. If requested before production, a certification to a specific requirement can be provided by Hill Fastener's Laboratory along with shipment. |
![]() ![]() A frame bolt is a Grade-8 indented hex flange screw with
a recessed fillet radius. This added feature improves joint
integrity by providing a more uniform bearing surface with
drilled or punched holes. Most truck and auto rebuilders
prefer this undercut feature to the O.E.M. product.
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![]() ![]() Hill Fastener Corporation owns two distinct markings; our logo "H" made
from a nut and bolt, and a stylized "HF." | ||
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