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Author Archives: Mike Husni

  1. Custom Kammprofile Gasket and Double Jacketed Gasket Manufacturing

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    custom gasketMercer Gasket and Shim is proud to announce the expansion and modernization of our Custom Kammprofile gasket and double jacketed gasket manufacturing facilities in response to the growing demands of our customers. With increased capacity and adherence to the best manufacturing practices, we are now better equipped than ever to handle quick turnaround and emergency orders.

    To accommodate this expansion, we have dedicated 7000 square feet of our plant solely to the manufacturing of these specialized products. Our state-of-the-art facility boasts an array of cutting-edge equipment, including:

    • 2 Kammprofile machines
    • 2 sizing tables
    • 2 rolling machines
    • 2 waterjet machines
    • 2 laser jets
    • 3 welding stations

    Backed by decades of experience, the Mercer team comprises skilled experts who stand ready to assist you in every step of the process, from design and development to the precise manufacturing of even your most challenging requirements. Mercer is ISO 9001:2015 and ITAR registered M48408.


    Need your kammprofiles and double jacketed gaskets fast!?  Try Mercer’s 24-hour Emergency delivery service!

  2. High Performance Fasteners for Demanding Applications

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    Mercer Gasket & Shim, a trusted industry supplier for over a century, known for its expertise in gasket and small part manufacturing, is now an official distributor of LoneStar Group’s cutting-edge fastening products.

    The coupling of Mercer’s industry knowledge and LoneStar’s outstanding products ensures that domestically manufactured, high-performance, fasteners of uncompromising quality are available to our customers across a range of demanding process industries.

    LoneStar Group is a globally recognized domestic manufacturer and supplier of high-performance fasteners.  Whether you require off-the-shelf fastening components or specialized fasteners tailored to your unique specifications, Lonestar and Mercer Gasket & Shim have the combined expertise and resources to deliver. We offer a comprehensive range of standard and metric fasteners, such as bolts, double-end fasteners, tap end fasteners, and all-thread fasteners, all manufactured to meet SAE, ASTM, and ISO grade standards.

    Lonestar can custom machine special fasteners, per print up to 32-inch diameters on items such as riser bolts, turbine bolts, stems, connector rods and collar studs.  For uncompromising performance under the most demanding conditions such as extreme temperature and excessive wear, customers can chose from a number of coating and plating options.  These fasteners are manufactured in accordance with ASTM.

    Mercer Gasket & Shim serves industries such as oil and gas, petrochemical, power generation and other industries requiring fastening solutions capable of withstanding harsh and demanding conditions.

    Both Mercer Gasket & Shim and Lonestar are ISO 9001:2015 registered, with exceptional quality control standards offering quick turn around and delivery for a broad and diverse range of standard and custom fasteners such as:


    • Grade 5 Finished Hex Cap Screws
    • Grade 8 Finished Hex Cap Screws
    • Hex Head Lag Screws
    • Carriage Bolts
    • Square Head Machine Bolts


    •  A193 B7 All Thread/Double End Studs
    • A193 B7M All Thread/Double End Studs
    • A194 2H Heavy Hex Nuts
    • Al94 Gr. 2HM Heavy Hex Nuts
    • A320 L7 All Thread/Double End Studs
    • A320 L7M All Thread/Double End Studs
    • A194 Gr. 4 & 7 Heavy Hex Nuts
    • A193 B 16 All Thread Studs
    • A193 B8 All Thread Studs and Nuts
    • A193 B7 Heavy Hex Bolts


    • Finished Hex Nuts
    • Heavy Hex Nuts
    • Hex Machine Screw Nuts
    • Cap Nuts
    • Coupling Nuts
    • Wing Nuts
    • Jam Nuts, Finished and Heavy
    • Slotted Nuts and Castle Nuts


    • USS Flat Washers
    • SAE Rat Washers
    • MS and AN Washers
    • Fender Washers
    • Split Lock Washers
    • Tooth Lock Washers
    • High Collar Lock Washers
    • Bevel Washers
    • Belleville Washers


    • A325 Heavy Hex Bolls
    • A563 Grade Nuts
    • A490 Heavy Hex Bolts
    • A307B Heavy Hex Bolts
    • F436 Hardened Structural Washers
    • A325 Load Indicator Washers
    • A325 Bevel Washers
    • Socket Head Cap Screws
    • Socket Set Screws
    • Socket Shoulder Screws
    • Socket Pipe Plugs
    • Hex Keys
    • Nylon Insert Locknuts
    • Steel Locknuts
    • Cotter Pins
    • Dowel Pins
    • U-Bolts – Special
    • Eye Bolts – Special
    • Hanger Bolts
    • Blind Rivets
    • Headless Sets


    • Zinc Electro-Plating
    • Xylan Coatings©
    • PCl-3TM
    • PCl-3+TM
    • PCl-3+STM
    • Sermagard Coatings


    • Forging – Nuts ¼” to 4”
    • Forging – Bolts ¼” to 2”
    • Roll Threading ¼” lo 4”
    • Cut Threading ¼” to 4”
    • Milling and Drilling
    • CNC Laities to 32”
    • Heat Treating – 10 tons/day
    • Electroplating – 6 tons/day
    • Fastener Coating – 10 tons/day


    • Special Coatings
    • Vendor Managed Inventory Program
    • EDI & Internet Interface
    • Quality & Testing Programs


    • 304
    • 316
    • 321
    • 347
    • 410
    • 416
    • 422
    • 501
    • 904L
    • 2205
    • 2507
    • 13-8PH
    • 17-4PH
    • A286/660
    • NitronicTM  50 & 60
    • MonelTM K-500
    • lnconelTM 600 & 625
    • Brass & Bronze
    • Corbon & Alloy
    • Others available on request


  3. Rail Car and Manway Sealing Solutions

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    Mercer Gasket & Shim offers an array of sealing solutions for the process industries, our sealing solutions can be found throughout the industrial supply chain.  Mercer Gasket and Shim can assist with all your rail car, tank sealing needs for a range of tank car applications including manway lids, bottom outlet valves, flange connections and a host of others.
    mercer gasket manway

    When transporting bulk commodities or hazardous materials by railway requires a safe, economical, and low maintenance manway sealing solutions, Mercer Gasket & Shim highly recommends Durlon brand SecureSnap™.  Duron products not only meet the aforementioned requirements, their products have stood the test of time as an industry favorite.

    Why does Mercer Gasket favor Durlon brand SecureSnap™ manway gaskets?

    Consider this Challenge:

    A potential problem with a standard AAR-1 manway gasket is that the conventional design must be precisely made with tight tolerances to fit snugly into a dovetailed groove so that it remains in place once installed. When this does not happen the potentialmercer gasket manway securesnap for NARs is heightened. The required tolerances for these conventional style gaskets are difficult to achieve and create quite a bit of scrap during the manufacturing process. In addition, if the ID is too small, installation becomes difficult if not impossible. On the other hand, if the ID is too large the gasket will easily fall out of the groove and into the manway nozzle. The result of this happening will cause leaks, splashes, and other releases from an improperly secured manway cover.

    The Solution

    The increased flexibility of the SecureSnap™ manway gasket enables the user to install the gaskets more quickly than the conventional gasket. The tabs allow for the SecureSnap™ manway gasket to easily snap into the dovetail groove. Thus, the time required to install the SecureSnap™ gasket is significantly less than the time required to install a standard manway gasket.

    The Benefit

    The flexibility of the SecureSnap™ manway gasket also renders the gaskets more versatile than the conventional gasket. The SecureSnap™ gasket will accommodate more than one style of manway system (dependent on end user approval) meaning that distributors can stock one size of gasket for multiple manway designs, therefore reducing inventory and overall cost.
    SecureSnap Logo

    Contact us for a quote or answers to your questions regarding SecureSnap™ or any of our manway or tank car sealing solutions.

    Contact Mercer Gasket & Shim Today!