Offering die castings, steel, gray and ductile sand castings, permanent mold and lost wax castings, for the automotive, refrigeration, emergency lighting, agriculture and general industrial market.
 
    Competitive edge: Low Labor Cost, Highly Skilled Labor Offers Castings in Fully Finished and Machined Condition
    Process: Die Casting, Green Sand Molding, Shell Molding, CO2 Molding, Investment, Centrifugal Casting
    Material: Cast Iron, Alloy Steel, Alloy Iron, Ductile Iron, Steel, Stainless, Bronze and Aluminum Alloy
    Applications: OEM, Pump and Valve Market, Automotive, Emergency Lighting and Agriculture
    Manufacturing: Machine Molding Including DISA and High Pressure Molding Lines, Hand Molding
 
 
 
 

Full-Line OEM Distribution Business, Specializing in Vendor Managed Inventory, Integrated Supply Partnerships and Turnkey Purchasing Solutions, Supplying Component Parts, Standard or Special, Uniquely Packaged, Assembled or Fabricated

Purchase Partners is a wholly owned subsidiary of McLaughlin Metal Sales Company, Inc. Since 1971, the McLaughlin Group has been servicing large, quality customers like you.  Originally known to manufacturers in the Midwest, our reputation has grown in the Southwest, South, and Rocky Mountain regions, too. 
 
In 1988, McLaughlin Metal Sales expanded their products offered by acquiring Grenada Fasteners, a small cold-heading plant in Mississippi.  By November 1989, one more company was added in St. Louis, known today as Purchase Partners®.  
 
The initial purpose of the new company, Purchase Partners®, was to compliment our domestic manufacturing plant with a Full-Line Distribution Business supplying domestic and offshore products. 
 
The evolution of our business came one step further in 1991 by redirecting our business position from Commodity Supplier to one of Material Management Partner.  Purchase Partners is fully committed to being the Leading Supply Partner for Vendor Managed Inventory Systems in the OEM market. Through all of our products, services and relationships, we are committed to forging a unified and synchronized supply chain. 
 
Today we operate three divisions:  Purchase Partners® , Purchase Partners of Asia™, and McLaughlin Metal Sales Company, Inc., and have sales exceeding $70 Million dollars annually and Growing! 
 
Our efforts are dedicated to future growth -- yours and ours and we know the best way for our company to grow profitably in the future is to enhance the productivity of our partners.

Fastener Head Styles
TYPE A POINT: A thread forming screw for use in thin metal .015 to .050 thick. Used with drilled, punched or nested holes in sheet metal, resin impregnated plywood, asbestos combinations, among others. Not recommended for new design.
TYPE B POINT: A thread forming screw for use in heavier metal .050 to .200 thick. Larger root diameter with finer thread pitch for light and heavy sheet metal non-ferrous castings, plastics, impregnated plywood, asbestos combinations, and other materials.
TYPE AB POINT: A thread forming screw combining locating type point of Type A with thread size and pitch of Type B. Normal limitations of Type B apply.
CONE POINT: A precision forming operation to provide any required included angle. Offers a smooth surface, accurate length, and a sharp point which can be produced to any desired contour to fit your particular requirements.
PINCH POINT (ROUNDED): An inexpensive method of applying a 40°, 60° or 90° lead-in point having a slightly rounded contour but with pinch-off marks on its surface. Used for aligning several sheets or assembling several parts requiring pilot action.
NAIL POINT (PINCHED): Usually supplied with an approximate 45° included angle having a sharp point and slightly squared surface. Used for impinging or locking against wood or other soft material. Other degrees of included angle and sharpness also available.
DOG POINT: A straight pointed section reduced in diameter slightly below the root diameter of the thread, usually extending in length about two-thirds the diameter of the thread. Recommended for ease in starting, to insure against stripping fine threaded products, and to increase efficiency along production lines.
DIE POINT: One of the least expensive pointing operations applied at the time of heading. This operation provides an end chamfer starting with a diameter smaller than the root diameter of the thread. The minimum reduction of the point is approximately 10% below the maximum minor diameter with an included angle of 40 to 50.
CUPPED POINT: A special cup section supplied on the end of the threaded member having a depression in the end to reduce the area in contact with the surface which increases its holding and locking power under pressure.
SELF-DRILLING: With special drilling points – lengths – diameters that will drill through ¼” metal. Eliminates all hole preparation – drills faster than a drill. No punching, drilling or tapping required. Reduces die costs.
SELF-PIERCING: Produces more secure sheet metal assemblies faster…used as self-drilling screw or driving thru pre-punched holes. Can be used with or without pilot holes. Positive rake “forward cutting edge" drills straight thru sheet metal at peak speed. Perfectly mated threads increase strip and back out pressures.
TYPE U POINT: A thread forming screw with high Helix thread for driving or hammering into sheet metal, castings, fiber or plastics for permanent, quick assemblies.
TYPE C POINT: A thread forming screw with either coarse or fine pitch machine screw thread and blunt tapered point. Eliminates chips and permits replacement with standard screw in the field. Higher driving torque required. Usable in heavy sheet metal and die castings.
TYPE F POINT: A thread cutting screw with machine screw thread with blunt tapered point, having multi-cutting edges and chip cavities. For heavy gauge sheet metal aluminum, zinc and lead die castings, cast iron, brass and plastic.
TYPE FZ POINT: A thread cutting screw with a tapping screw thread with blunt tapered point and multi-cutting edges and chip cavities. For plastics, die castings, metal clad and resin impregnated plywoods, and asbestos.
TYPE 1 POINT: A thread cutting screw with single flute for general use. Produces a fine standard machine screw thread for field replacement.
TYPE 17 POINT: A thread cutting screw for wood with a coarse tapping screw thread and a special long sharp point fluted to capture chips.
TYPE 23 POINT: A thread cutting screw in the fine thread series offering maximum thread cutting area and excellent chip clearing, with minimum tightening torques.
TYPE 25 POINT: A thread cutting screw similar to Type 23 point except with coarse Type B thread. For plastics and other soft materials with large chip clearing and cutting edges.

 

  1. Glossary
  2. What is RoHS?
  3. MRO Products and Solutions
  4. Terms and Conditions of Sale
Since 1972