Parker 750 Series ThredSeals™ Deliver Safe, Dependable Fastener Sealing Performance


 

Parker 750 ThredSeal solutions provide superior fastener sealing capabilities for fluid system applications. Characterized by easy-to-assemble and low-cost fastener standards, ThredSeals are known to be a safe and dependable means of sealing the threads of machine screws, studs, and related items. ThredSeals actually seal directly against threads in a self-centering and non-directional capacity that require a simple twisting motion before tightening the fastener.

As a pioneer in providing dependable sealing technology, Parker consistently offers innovative solutions that serve customers' fastener needs. Parker's ThredSeal 750 Series leverages a mechanical application, rather than chemical, in sealing English unit fasteners with painless assembly. Often reusable due to the extraordinary elastomeric properties of the 750 series, these fastener seals are effective at the recommended pressure and temperature levels while certain sizes are known for sealing at higher than normal pressures.

At Zatkoff Seals & Packings, we are proud to carry every standard stock size of Parker's 750 Series ThredSeals fastener products, as well as several additional non-stock sizes. The 750 series is part of Parker's exceptional sealing lineup and have particular advantages when seals are separated from contact surfaces without the need for certain tools or chemicals. We are committed to providing exclusive access to key benefits of such unique fastener sealing solutions to our customers.

 

750 Series ThredSeal

Code 0002

Code Seal Compound Specification
00 Commercial Standard Nitrile None, General Purpose
Recommended Uses Recommended Operating Temperature
General industrial environments, petroleum fluids and cold/room temperature water -30°F to +225°F
Code Retainer Material Finish
02 Low-Carbon Steel, ASTM A 109/A 109M Zinc Plated, Commercial Grade

750-0002 Stock Sizes

Fastener Size Threads Per Inch (Ref.) UNC (Coarse) Threads Per Inch (Ref.) UNF (Fine) O.D. ± .010 Retainer Thickness ± .005 Zatkoff Stock Standard
750-0002-6 #6 32 40 .406 .050
750-0002-8 #8 32 36 .406 .050
750-0002-10 #10 24 32 .469 .050
750-0002-12 #12 24 28 .562 .050
750-0002-1/4 1/4 20 28 .562 .050
750-0002-5/16 5/16 18 24 .687 .064
750-0002-3/8 3/8 16 24 .750 .064
750-0002-7/16 7/16 14 20 .906 .078
750-0002-1/2 1/2 13 20 1.000 .078
750-0002-9/16 9/16 12 18 1.094 .094
750-0002-5/8 5/8 11 18 1.187 .094
750-0002-3/4 3/4 10 16 1.375 .109
750-0002-7/8 7/8 9 14 1.562 .109
750-0002-1 1 8 12 1.750 .120
750-0002-1 1/8 1 1/8 81 12 1.875 .120
750-0002-1 1/4 1 1/4 81 12 2.000 .120
750-0002-1 3/8 1 3/8 81 12 2.125 .120
750-0002-1 1/2 1 1/2 81 12 2.250 .120

Key Benefits

  • Effective sealing for standard fastener sizes
  • Self-centering
  • Non-directional
  • Easy to assemble and disassemble
  • Reusable
  • Readily available in standard fastener sizes

Made of threads, a spiral leak path exists on the nut side of the fastener that allows constant flow of fluid but one of the the three wedges inside the ThredSeals seal is always in place to provide adequate blockage. To achieve ideal performance levels, it’s important to reduce the likelihood of rubber extrusions by ensuring that the rubber sealing element is fully covered by the adjoining metal parts. For optimal coverage, a minimum flat surface of diameter “B” is required for the nuts and/or washers that sit on the ThredSeal.

At Zatkoff Seals & Packings, we proudly offer Parker’s 750 Series ThredSeals in every standard stock size for incredible fastener sealing solutions. Together, with Parker, we are committed to delivering innovative sealing technology that meets your fastener needs. Contact us today to learn more about Parker 750 Series ThredSeals or any other products of interest.

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1 Sizes 1-1/8, 1-1/4, 1-3/8, & 1-1/2 are not designed for standard course threads. Testing is recommended prior to use.

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