Rumco Fastener Products Screw Assemblies (SEMS)

As a leading cold-heading fastener manufacturer, Rumco Fastener Division specializes in a wide variety of SEMS and custom fastener products. For over 30 years customers have made us their manufacturer of choice because of our ability to meet custom requirements, our depth of product lines, our manufacturing capabilities and our ongoing commitment to customer satisfaction.  RUMCO specializes in SEMS and custom fasteners including 2-, 3- and 4-piece assemblies, in ferrous and non-ferrous materials, with standard, cutting or forming thread geometries

We have a complete range of manufacturing equipment allowing us to make quick, efficient production runs. Whether the order is for 1,000 or a million pieces, Rumco has all the resources to meet customer fastener requirements.

Rumco Fastener - Manufacturing Facility - Elk Grove Village, IL
Ribbed, Square Neck, and Carriage Bolts

Address: 
989 Pauly Drive
Elk Grove Village, IL 60007
USA
Ph 847.364.5000
Fx 847.364.4104
info@mw-ind.com

Downloads / Links: 
Rumco Brochure

Certifications / Registrations: 
QSLM Class 2 and 3 CAGE Code Number 6Z992
ISO 9001:2008
DFARS
ITAR
REACH
RoHS

Capabilities

  • Heading
  • Trimming
  • Slotting
  • Rolling
  • SEMS rolling
  • Shank slotting
  • Multi-blow transfer headers

Size Ranges:

  • Blank: #2-1/2 diameter
  • Metric: M2.5 – M12
  • Lengths up to 7″ available

Materials

  • Low Carbon – 1008, 1010, 1022
  • Medium Carbon = 10B21, 1038
  • Alloys – 4037, 4140
  • 18-8 (302 & 316), 410, 430 Stainless Steel
  • 260 / 270 Brass
  • CDA 651 Silicon Bronze
Tri Lobe Screws

Product Types

  • Captive Screws
  • Hex Head Cap Screws
  • Hi-Lo Screws
  • Machine Screws
  • Sheet Metal Screws (type A, AB, B, C, F, U-Drive, Type 1, 17, 23, and 25 Thread Cutters)
  • Shoulder Screws
  • Socket Screws
  • Tapping Screws 48*-2, 45*-1, 60*-1, high riser for plastics, and Hi-Lo Threads
  • Thumb Screws
  • Tri-Lobular Screws
  • Tri-Point Screws
  • Type CA, Tri-lobe type CA, Type SW
  • Weld Screws
  • Custom Screws
  • Clevis Pins
  • Rivets
  • Standard Inch and Metric

Head Styles

  • Binder
  • Button
  • Cheese
  • Fillister
  • Flat
  • Flat Top Wafer
  • Flat Under Cut
  • Oval Hex
  • Hex Flange
  • Hex Washer
  • Pan
  • Round
  • Round Washer
  • Trim Hex
  • Truss

Drive Types

  • Slot
  • Phillips
  • Phillips Slot Combo
  • 1A Phillips
  • One Way Slot
  • Hex Socket
  • Tamperproof Hex Socket 6 Lobe (Torx)
  • Slotted 6 Lobe Combo
  • Tamperproof 6 Lobe
  • Square Drive
  • Square Phillips Combo
  • Square Phillips Slot Combo
Captive Screws & Assemblies
Specialty & Custom Fasteners

Markets Served

Manufacturing Standards

  • Standard Inch IFI (Industrial Fastener Institute)
  • Metric IFI (Industrial Fastener Institute)
  • ASME
  • ASTM DIN
  • ISO
  • SAE
  • Customer Prints

Value Added Services

  • Broaching
  • Captivating
  • Coating
  • Drilling
  • Grinding
  • Grooving
  • Head Painting
  • Heat Treating
  • Nylon and Locking Patch
  • Plating
  • Pointing
  • Shaving
  • Stamping