Great Lakes Fasteners (GLF) has been supplying quality production and MRO fasteners to the energy, transportation, construction and high-tech marketplace since 1958. GLF offers a complete portfolio of standard, metric, military spec (mil-spec) and special-made-to-print fasteners for its global customer base.

GLF has developed a comprehensive range of products and services uniquely designed to assist our oil and gas clients, helping them to achieve production targets. With decades of fastener knowledge, our dedicated program managers work with our quality engineers to ensure you receive the right product for your application at the right time. GLF’s bundled packaging and inventory services offer additional options that efficiently eliminate production downtime, decrease product costs and reduce your in-house inventory.

High-quality fasteners for the oil and gas industry

GLF has been operating under ISO 9001:2008 certification for more than 25 years. Our quality department is led by a 20-year veteran of the fastener industry and our lab is home to comparators, hardness testers, gauging and equipment to ensure you can confidently purchase the fundamental instruments for your critical applications. We provide all necessary quality documentation, including full certifications for material, hardness, plating and processing traceability in accordance with EN10204 3.1 and 3.2.

Highest quality fasteners for the oil and gas industry.
A comprehensive portfolio of fasteners for every need.
Specialized inventory solutions designed to deliver maximum productivity.
GLF offers a variety of material, plating and coating options for additional durability and corrosion protection.
Fasteners to support production or MRO.
We start with the finest base material to ensure our customer receives a quality product every time.
GLF supports any of your unique secondary operations from special plating to cross drilling to painting and packaging.
GLF has been supplying high-quality fastener products to North America since 1958.

Kitting and packaging for offshore applications

Standard packaging helps our clients become more efficient by assembling all the necessary fasteners and products into a single bagged kit or box for simple rebuilds, repairs and projects. GLF also offers customer labeling, barcoding and packaging to handle almost any assignment your team can imagine.

Inventory management services for fasteners

GLF offers a host of inventory management services designed to streamline your production processes by making sure the correct fasteners are available to your production and maintenance departments. We will work with your team to create an optimal supply program that makes inventory easier to monitor, manage and access. In addition, we can electrically integrate to further streamline the replenishment process:

  • JIT and Kanban
  • Maintenance, repair and operations (MRO)
  • Systems (bins and replenishment)
  • Stocking and automated order fulfillment
  • Fastener store

With GLF, you can eliminate the paperwork and the hassle that comes with managing and storing your fastener inventory. GLF will source, warehouse and release products based on your estimated annual usage (EAU) and bill you based on your actual usage. Consigned inventory allows you to focus on what you do best and frees up needed capital because you only pay for what you use. GLF is also EDI-capable, allowing us to provide fully integrated, dock-to-stock supply.

Standard, metric and mil-spec fasteners

GLF’s unwavering commitment to providing our customers with a full portfolio of quality standard, metric and mil-spec fasteners on time and at the right price is what makes us different from the rest.

When it comes to fasteners and precision industrial components for the oil and gas industry, GLF is the clear choice.

High-quality materials

Carbon and alloy:

  • Mild steel
  • 080M40 (EN8)
  • 605M36 (EN16)
  • 708M40 (EN19)
  • 817M40 (EN24)
  • 826M40 (EN26)
  • ASTM A193
  • B5
  • B7
  • B7M
  • B16
  • B16A
  • A320
  • L7
  • L7A
  • L7M grades
  • ASTM A194 grades: 2H, 2HM, 7, 7M, AISI 4130, 4140, chrome moly


  • Aluminum
  • Bronze
  • Silicon aluminum
  • Phosphor bronze
  • Brass
  • Naval brass
  • Cupro nickel 70/30, 90/10
  • Nylon

Nickel alloys:

  • Monel
  • Inconel
  • Hasteloy
  • Hiduron
  • Nimonic
  • Titantium

Stainless steel:

  • A2
  • A4 Class 50, 70, 80
  • 300 series
  • 400 series
  • C3-80
  • ASTM A193
  • A320 grades: B8, B8M, B8T, B8MX, B8TX, B8C, B6, ASTM
  • A194 grades: 8, 8M, 8C, 8T, 17-4 PH, FV520B, 904L

Surface coatings:

  • Bright zinc
  • Cadmium
  • Zinc and passivated
  • Zinc nickel
  • Hot dipped galvanized
  • Phosphate
  • Molykote
  • PTFE
  • Teflon
  • Xylan
  • Silver
  • Gold
  • Copper
  • Zinc cobalt