Screw Machine Products

Pins

Knurled Pins are similar to grooved pins in that the diameter of the pin is expanded by pressing features into the body of the pin.
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Threaded Pins are used when two pieces must be assembled and must support a load, typically a fastener. Read More>>
Fostermation, Inc. has been a leader in the manufacturing of Terminal Pins for tubular heating elements since 1971.
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We produce straight, headed, ground and knurled configurations. Hinge pins can also be slotted or grooved to accommodate o-rings or e-rings.

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Scaler Needle Cold Forming

Scaler Needles

Fostermation, Inc. produces scaler needles that are found in pneumatic scaler guns. A pneumatic scaler gun uses compressed air to thrust a piston into a back and forth motion.  This motion forces the scaler needles to move back and forth against the work surface. These tools are typically used for removing rust, paint, and mill scale from metal surfaces. Scaler needles are produced in four standard diameters: 2mm (.079″), 3mm (.117″), 3.175mm (.125″) and 4mm (.156″). Standard materials include C1065, 410SS, and CDA172. Needles are produced with a standard tapered head configuration and a square cut-off end.
Fostermation Hinge Pins

Hinge Pins

Fostermation, Inc. produces Hinge Pins, which are cylindrical fasteners used to locate, align and join two component parts. We produce straight, headed, ground and knurled configurations. The ends are typically chamfered for ease of insertion into the mating pieces. Hinge pins can also be slotted or grooved to accommodate o-rings or e-rings.  Fostermation, Inc. presently produces hinge pins that are used in fuel doors, tailgates and hatchback assemblies for the automotive industry; as well as hinges used in tackle boxes, appliance doors, and heavy equipment cabs.
Terminal Pins

Terminal Pins

Fostermation, Inc. has been a leader in the manufacturing of Terminal Pins for tubular heating elements since 1971. Both upper and lower styles can be produced in a variety of configurations.

Upper pins are manufactured to standard Oakley configurations. Lower pins can be upset, headed, knurled or slotted.

Coil ends can be manufactured with a taper or radius form.

Materials used are C1008/1018 or C1215 CRS (either plain or with a pre-plated 1/2% or 2% nickel plate or a post electro-nickel plated finish), stainless steel and brass.

Terminal Pins

Threaded Pins

Threaded Pins


Threaded Pins
are used when two pieces must be assembled and must support a load, typically as a fastener. The strength capabilities depend upon the thread dimensions and the mechanical properties of the fastener material.

The thread is formed when a die, a hardened piece of steel with the desired thread profile, is applied against a revolving work surface. As applied force is gradually increased, the thread profile is transferred to the work piece. The result is a stronger thread than the one that is ground or cut.

Most metals can be thread rolled, including steel, stainless, brass and aluminum. Fostermation, Inc. can assist you in the exact material grade, tensile selection and thread specification to maximize product performance for your particular application.

Threaded Pins

Knurled Pins

Tooth Form

Pins Needles RodsA Knurled Tooth is V-shaped and the depth of the tooth is less than the depth of a theoretical V-form. The tooth has a rounded root and crest. The relationship between the actual depth of tooth to the theoretical V varies with the pitch of the teeth. On finer pitches, the tooth is a smaller proportion of the theoretical V-depth then coarser pitches. Also, female diamond patterns have shallower tooth depth than male diamond patterns.

Knurled Pins: Description of Process

Knurling has a wide variety of applications in the screw machine industry as many of its products have knurled surfaces. Knurling is most commonly used for decorative purposes and for serrating surfaces where component parts are locked or keyed together in unit assemblies. The term “knurling” designates both the process and the knurled portion of the work. Knurling is obtained by displacement of the material when the knurl is pressed against the surface of a rotating work blank. Knurling tools, which have teeth of uniform pitch, are used for producing straight, diagonal or diamond knurls on cylindrical surfaces. Cylindrical knurls are used for knurling on screw machines, automatic lathes and cylindrical die thread rolling machines. The most commonly used knurls are those which produce straight, diagonal and diamond patterns on the work. Special knurls may be used, however, to produce teeth on tapered, convex or concave surfaces. Flat knurling dies are used in reciprocating types of thread rolling machines. Diameter knurling may have either a male or female pattern. Male diamond knurls have raised points and produce a female impression. Female diamond knurls have depressed points and produce a male impression. The male diamond pattern knurling with raised points on the work is most commonly used as it can easily be produced by using two diagonal knurls-one right hand and the other left hand. Single knurls with male or female diamond patterns are also used.
Knurled Pins

Knurled Pins

Knurled Pins are used in a variety of applications in the screw machine, fastener, plastics and automotive industries. Knurling is most commonly used for serrating surfaces where component parts must lock together in unit assemblies.

Knurling is the process by which material is displaced when a die with the opposite form is rolled across the work surface. The resulting form is a series of V-shaped impressions on the circumference of the piece whose overall configuration can either be a straight, diagonal or diamond pattern.

Most metals can be knurled, including steel, stainless, brass and aluminum. Fostermation, Inc. can assist you in the exact material grade, tensile selection and knurl form specification to maximize product performance for your particular application.

Knurled Pins

Description of Process
Tooth Form

CNC Swiss Machining

CNC Swiss Machining

Fostermation, Inc. has recently added CNC-Swiss type capabilities to its impressive list of manufacturing processes with the addition of 5-axis CNC Swiss machines that contain live tooling. This gives us a full range of CNC swiss machining processes for the production of precision parts without expensive secondary operations. We are now able to manufacture complex parts with ultra high-speed flexibility.

CNC Swiss Machining

CNC Swiss Machining

Our CNC-Swiss machines can produce parts with diameters up to 20mm (3/4″) and lengths up to 155mm (8.00 in). Note: longer lengths are available with a special attachment. This latest technology utilizes multi-axis machines, equipped with live tooling, for milling, cross-drilling and back-working. It provides maximum flexibility for complete complex parts, eliminating costly secondary operations.

Cross drilling, center drilling, C-axis rotation, sub-spindle rotation, automated magazine bar feeds, deep drilling, tapping, threading, milling slotting and broaching can all be accomplished with ease. Typical turn tolerances can be held to +/- .0002”.

CNC SWISS TURNING

CNC Swiss Turning