Screws are fasteners that consist of a threaded shaft at one end and, typically, a head at the other. They are inserted into solid materials and secured via rotation. Search by Specification | Learn More about Screws

Self-sealing fasteners have an elastomeric insert or captive O-ring that simultaneously provides sealing and locking. Search by Specification | Learn More about Self-sealing Fasteners

...are designed to cut while turning counterclockwise. Drill bits may have NAS specifications stating that they are manufactured in accordance with National Aerospace Standards (NAS). Some drill bits are coolant fed; they have a hole or channel... Search by Specification | Learn More about Drill Bits

Rivets are headed pins with a point that passes through two pieces of material. Beating or pressing down the point causes it to spread out and form a second head. Rivets can be used to connect two plates or pieces of material together. Search by Specification | Learn More about Rivets

Studs are mechanical fasteners which are threaded on one or both ends. One end is secured to an object. The other end is used typically with a nut. Search by Specification | Learn More about Studs

Nuts are fasteners that are designed to fit around and secure a bolt or screw. The application determines the type of nut to use. Search by Specification | Learn More about Nuts

Threaded rod is a fastening bar or rod threaded along its length. Search by Specification | Learn More about Threaded Rod

Shoulder screws are fasteners with an unthreaded shank. The unthreaded shank is long when compared to its threaded portion, which is located under the head. Shoulder screws can be used to attach one machine part to another, or as a plain bearing in places where rotary or sliding motion is required. Search by Specification | Learn More about Shoulder Screws

Counterbores are tools for cutting recessed holes in a workpiece, typically on center with a smaller hole. Counterbores are also used for spot facing. Search by Specification | Learn More about Counterbores

Threaded inserts are blocks of material with a threaded hole that are pressed or molded into a part, usually made of a different material. Search by Specification | Learn More about Threaded Inserts

Captive screws are fasteners which remain attached to a panel or parent material, even after they are disengaged from the mating panel or part. They meld with the parent via cold forming, and then fuse with the panel or part into a single entity. Search by Specification | Learn More about Captive Screws

B-3990 and National Academy of Sciences (NAS) standards. Radial airframe bearings are designed for static loads and oscillation or slow rotation. They consist of an inner and outer ring with a full complement of needle rollers in a single or double... Search by Specification | Learn More about Needle Roller Bearings

...and recovery devices such as network attached storage (NAS) can use traditional protocols like TCP/IP over Ethernet to perform data replication to a secure remote storage location. Learn More about Data Storage and Management Services