Set Screws, Cup Point
Set Screws are essentially a headless bolt, which has a hex socket in the driving end. They are commonly used when a protruding head would be in the way of other moving parts. Their most common function is to secure two parts together, but without a pre-determined positioning point between them. A prime example is fixing a pulley wheel along a drive shaft, where the set screw in the wheel’s hub is tightened into the side of the drive shaft and holds them tight due strictly to friction.
Set screws are available either as a black hard steel alloy, or as stainless steel.
Because of its headless shape, and how it bores through its hole, a set screw is also known as a “grub screw”.
- Additional information
- Description
Additional information
| Material/Finish | Black Alloy, Stainless Steel |
|---|---|
| Threading | Coarse, Fine |
| Diameter | #0-72, #0-80, #1-64, #1-72, #2-56, #2-64, #3-48, #3-56, #4-40, #4-48, #5-40, #5-44, #6-32, #6-40, #8-32, #8-36, #10-24, #10-32, #12-24, #12-28, 1/4″-20, 1/4″-28, 5/16″-18, 5/16″-24, 3/8″-16, 3/8″-24, 7/16″-14, 7/16″-20, 1/2″-13, 1/2″-20, 5/8″-11, 5/8″-18, 3/4″-10, 3/4″-16, 7/8″-9, 7/8″-14, 9/16″-18, 1″-8, 1″-14, 1-1/8″-7, 1-1/8″-12, 1-1/4″-7, 1-1/4″-12, 1-1/2″-6, 1-1/2″-12 |
| Length | 1/16″, 3/32″, 1/8″, 5/32″, 3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 1″, 1-1/8″, 1-1/4″, 1-3/8″, 1-1/2″, 1-5/8″, 1-3/4″, 1-7/8″, 2″, 2-1/4″, 2-1/2″, 2-3/4″, 3″, 3-1/4″, 3-1/2″, 3-3/4″, 4″, 4-1/4″, 4-1/2″, 5″, 5-1/2″, 6″, 6-1/2″, 7″, 7-1/2″, 8″, 8-1/2″, 9″, 10″, 11″, 12″ |
Set Screws are essentially a headless bolt,
which has a hex socket in the driving end. They are commonly used when a
protruding head would be in the way of other moving parts. Their most
common function is to secure two parts together, but without a
pre-determined positioning point between them. A prime example is fixing
a pulley wheel along a drive shaft, where the set screw in the wheel's
hub is tightened into the side of the drive shaft and holds them tight
due strictly to friction.
Related Products
-
Quick ViewPAM #8 X 2-1/2″ Roof Tile Screws
Stainless steel tile roofing screws for use with the PAM auto-feed screw system. These screws are #8 x 2-1/2″ and used for attaching roof tile to wood. The type 17 point improves penetration of tile.
Meets Miami-Dade County, FL Protocol PA 114-95, Appendix E, Section 2 (ASTM G85). Box of 1,000 screws. -
Read MoreQuick View
Carriage Bolts
Carriage bolts have a smooth rounded head with a square neck underneath that locks into wood to prevent spinning when tightened. Use with a pre-drilled hole and secure with a hex nut and washer. They are great fasteners for decks, play equipment, docks, fencing, and furniture.
The unique design is great for connections where the head is not accessible for tightening. The self-locking square neck and coarse threads fasten very securely.
All carriage bolts we stock have coarse threading as a standard. -
Quick View
Buildex Trugrip Roof Screw, 1″
Buildex® TrueGrip timber screws are suitable for fixing metal roofing into both hardwood and softwood timber battens. Their sharp point prevents screw-walking when starting to insert them. They also engage the material faster, and need less effort, for a safer installation environment.
-
Read MoreQuick View
Lock Washers
-
Read MoreQuick View
Pro-Tect System for Pool Enclosures
PRO-TECT Fastener Protection System consists of a nylon sleeve and a cap that, together, cover and protect the anchor screw. The PRO-TECT nylon sleeve gives protection from electrolysis, providing worry-free installation while extending the life of the product. This is very important for the harsh conditions of the coastal environments and extreme temperatures.
The PRO-TECT cap snaps onto the top of the nylon sleeve, covering the head of the Blue-Tap anchor screw. Due to its special design, the cap will not come off easily. Caps are available in White and Bronze.
By repelling water and preventing penetration, PRO-TECT reduces or eliminates the need for warranty work, increasing life expectancy of the structures. -
Read MoreQuick View
F436 Structural Washers (SAE)
-
Read MoreQuick View
Wood Screws
Wood screws are made to join two pieces of wood together and securely hold them. There are many styles of wood screws available today, from various driver tools to what material the wood screw is made from.
-
Read MoreQuick View
Mro Thread-Locker, 50ml Bottle
MRO Solutions thread-locking products are anaerobic compounds formulated for sealing, joining, fastening, retaining, and generally locking together metal components. Unlike other thread-lockers, MRO compounds are non-surface sensitive, so they do not require use of primers for curing.
Once parts are mated with MRO thread-lockers, they form a unitized assembly that resists vibration. In addition, the mated parts are sealed against attack from corrosion, internal rust, seizure, solvents, gases, and other chemicals. -
Read MoreQuick View
Button Head Socket Cap Screw
The button head version of socket cap screws are commonly used for removable panels, machine parts, die fixturing, and clamping. The socket head enables driving where there is not sufficient space for wrenches or sockets. The button head offers a wider bearing surface and high tensile strength, but offers lower profile than standard socket cap screws.
Button Head socket cap screws are available as an alloy with black oxide finish, or as stainless steel. -
Read MoreQuick View
Square Nuts, Zinc
As the name implies, square nuts have a 4-sided, square design. This square profile provides a greater bearing surface when installing onto a bolt. Square nuts are designed for use with square headed bolts, and the large surface provides better resistance to loosening. When using square nuts, as with hex nuts, use flat washers of the correct size and material.
