High-Quality Butt Hinges for Industrial and Commercial Applications

No, Sierra Pacific does not sell butt hinges to the public, as we are not a retail establishment. We sell business-to-business (B2B) only. If you need a source for SPEP products in small quantities, we encourage you to visit our partner, Hard-To-Find Hardware at www.HTFHardware.com.

Yes! SPEP is ISO 9001:2015 certified. You can learn more about this on the About Us page of our website.

Industrial butt hinges are a common heavy-duty hinge seen on enclosures, cabinets, access panels, and machinery doors. They’re typically used to join two surfaces—the door and the frame—for smooth pivoting movement. They are called "butt" hinges because the both rectangular pieces (leaves) are installed by "butting" them into mortised recesses on the door and frame.

Sierra Pacific Engineering and Products provides butt hinges to commercial clients in a wide array of industries, including:

• Restaurant/commercial kitchen
• Power generation
• HVAC
• Spray booth
• Trash/laundry chutes
• Utility/motorsports
• Watercraft/boats
• Clean roms
• Catering
• Medical
• Bus/Metro/Rail

SPEP butt hinges are exceptionally durable, making them an ideal solution for high-use applications. Contact us to start the customization process.

The key components of a butt hinge are the leaves, pin, and knuckles.

• Leaves: The flat components. One side is affixed to the wall or door jamb, and the other is secured to the moving component, such as a lid or door.
• Knuckles: Each leaf has a set of cylindrical knuckles. The knuckles on one leaf interlace with the knuckles on the other leaf.
• Pin: The pin slides through the center of the knuckles, adjoining the leaves and facilitating movement.

Like a traditional hinge, a butt hinge has either three or four knuckles. However, standard continuous hinges are mounted directly onto a door frame and door. Conversely, butt hinges are mortised or inset into the surface of the door and frame. This unique installation method provides added strength and durability.

There are three broad categories of industrial butt hinges, including plain, ball-bearing, and spring-loaded. At SPEP, we offer solutions for any type of butt hinge. Here are some of the differences outlined:

• Plain butt hinges: Best suited for light-duty applications. These pieces of access hardware are extremely simple to install and require minimal maintenance.
• Ball-bearing butt hinges: feature lubricated bearings, which are located between the knuckles. These ball bearings reduce friction, making them suitable for use with heavy doors.
• Spring-loaded butt hinges: have a unique mechanism that ensures a door closes completely after each use. This type of hinge is often installed on screen or patio doors.

At SPEP, we provide our commercial clients with precision-engineered, high-quality access hardware. Our extensive digital catalog includes over 300 butt hinges and hinge components. From standard door hinges to heavy-duty, corrosion-resistant options, we provide products that are built to last.

For decades, SPEP has been a trusted industrial hardware supplier for clients in a broad array of industries, including power generation, HVAC, watercraft, catering and food trucks, restaurant and commercial kitchens, and medical sectors. We leverage this wealth of expertise to help clients like you find the ideal butt hinges for your commercial project.

SPEP offers butt hinges in a variety of different materials and finish options. Our stainless steel butt hinges are by far the most popular option, as they provide good corrosion resistance and durability. However, we also offer other materials based on your aesthetic and functional needs, including:

• Steel
• Aluminum
• Brass
• Die-cast zinc
• 304 stainless steel
• 316 stainless steel

The specific finishes available will vary based on the butt hinge material you select. Our finish options include the following:

• Milled
• Black
• Powder coated
• Zinc-plated
• Brushed
• Brass-plated
• Nickel-plated
• Chrome-plated

If you need help choosing the right material and finish combination for your intended use, contact us. One of our experienced team members will be able to outline the benefits of each option so that you can choose the ideal butt hinges for your project.

Yes, all of SPEP’s butt hinges are durability-tested. We are committed to upholding the highest standards and closely inspecting the hardware of every shipment before it leaves our facility. By conducting rigorous testing and quality control, we ensure that your components meet or exceed industry standards, including ISO certifications.

Don’t settle for less when it comes to industrial latches and access hardware. Give your customers the very best by sourcing components from SPEP, an ISO-certified organization that prioritizes performance and reliability.

Yes, the minimum order amount for a new customer's first purchase of butt hinges is $250. Subsequent orders have a $50 combined minimum.

Placing your butt hinge order is a simple consultation away. Reach out to use via:​

• Emailing order@spep.com
• Calling (800) 433-5554
• Faxing (800) 301-8522

Yes, will call orders are accepted for butt hinges, but must be called in or emailed to order@spep.com first. You’ll receive an email notification once your shipment is ready for pickup.​

SPEP’s hours of operation are 8:00am to 4:30pm local time Monday through Friday at each of our three warehouses in (CA, IL, & TX). Our customer service lines are open 5:00am to 5:00pm Pacific time.​

Yes, butt hinge orders can be placed anytime by emailing order@spep.com. We typically process orders within 24 hours, though orders received during off-hours may take longer to process.

Butt hinge prices quoted or acknowledged are based on Sierra Pacific Engineering and Product’s (SPEP’s) current cost of material and labor. All of our standard pricing is based on tiered price breaks for single shipment quantities.

Yes! Customers are not required to be set up on credit terms, and can instead pay using a credit card at the time of shipment. Credit cards may also be used to pay for orders in the meantime while credit terms are being evaluated.

Yes! Special pricing beyond the standard matrix may also be available for catalog items ordered in especially high volumes. Price breaks for custom items are evaluated based on estimated annual usage (EAU) expectations and minimum order quantity (MOQ) to cover production lead times.

Unless otherwise specified, Customers agree to accept over-run or under-run volumes not exceeding 10% of quantities ordered. In cases where an overrun or under-run exceeds 10%, we may request acceptance in writing from the customer.

SPEP prefers to ship butt hinges “freight collect” using any carrier our customers specify. In the absence of specific shipping instructions, we will use our own discretion in choosing a carrier.

SPEP assumes no responsibility for any such damage or loss or for transportation delays. We are also not responsible for insuring shipments unless specified by the customer, in which event such insurance shall be based on the customer’s valuation and at the customer’s expense. All claims for damage and loss, whether apparent or concealed, shall be filed by the customer with the carrier. Shortages and/or damage must be noted at the time of delivery.

Yes, SPEP ships butt hinge orders worldwide from our US-based warehouses. Under appropriate circumstances, we can even coordinate “China to China” shipments directly from the factory.

How long it takes to receive your butt hinge order will depend on when it was placed and the due date referenced in your purchase order. If no due date is given, your order will be shipped ASAP.

Upon receiving your order, SPEP provides an order acknowledgement with an estimated ship date. Any shipment date specified shall be the date of shipment from our plant. Shipment dates given by our order desk are estimates unless otherwise indicated.

Delivery may be subject to delays caused by strikes, fires, floods, accidents, pandemics, or any other cause beyond our control, including delays in the delivery of material to SPEP by third parties.

Yes, you can change your butt hinge order. Change requests made after production has started will convert the order to a time and cost of materials basis unless we’ve agreed in writing to a price revision that reflects the cost of the changes. No changes may be made without SPEP’s prior written authorization.

Any butt hinge order placed with and accepted by SPEP may be canceled only with the written consent of SPEP, upon payment of all expenses already incurred on the order by SPEP prior to the effective date of cancellation.

SPEP guarantees defect-free materials and workmanship for 120 days from delivery. If a product is found to be defective, we will approve returns with an R.M.A. number and may replace or refund the item.

PLEASE NOTE that this warranty does not cover damage from misuse, improper installation, or environmental wear. SPEP is not responsible for removal, reinstallation, or incidental costs. No additional warranties, express or implied, apply.

If returns are necessitated due to errors of SPEP, the customer must obtain an R.M.A. Once obtained, SPEP will cover the cost.

If the customer made an error, only unused catalog items may be returned within 30 days through prior approval, an R.M.A., prepaid shipping, and a 20% restocking fee (minimum $25). Special orders cannot be returned unless defective.

You can download or view a PDF catalog right here on our website. You can also use the search function on our site to browse and filter parts by category or industry. Please contact us at (800) 433-5554 or sales@spep.com for sample and quote requests, as well as other inquiries.