Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16 - 2231G
SKU: 76369277078

Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16 - 2231G

$54.62 $60.69
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Description

Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16 - 2231GOverview: Headlock Bolts eliminate the need for lock washers, Period. That's because each Headlock Bolt features 24 equally spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface eliminating the need for lock washers. Features: 16 per Package Includes a ball head hex key socket installation tool that makes it easy to get them started 410 stainless steel Minimum 180,000 PSI tensile strength 24 equally spaced

Overview:

Headlock™ Bolts eliminate the need for lock washers, Period. That's because each Headlock™ Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Features:

  • 16 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth

Application:

Year Make Model Submodel Engine Size
1973 - 1974 GMC C35/C3500 Pickup 454/7.4 V8
1968 - 1969 GMC K15/K1500 Pickup 396/6.5 V8
1968 - 1969 GMC K25/K2500 Pickup 396/6.5 V8
1973 - 1974 GMC K25/K2500 Pickup 454/7.4 V8
1968 - 1969 GMC K35/K3500 Pickup 396/6.5 V8
1970 - 1971 GMC K35/K3500 Pickup 402/6.6 V8
1973 - 1974 GMC K35/K3500 Pickup 454/7.4 V8
1967 Mercury Brougham 428/7 V8
1966 - 1967 Mercury Colony Park 410/6.7 V8
1966 - 1968 Mercury Colony Park 428/7 V8
1965 - 1967 Mercury Colony Park 427/7 V8
1967 Mercury Brougham 410/6.7 V8
1967 Mercury Brougham 427/7 V8
1965 Mercury Caliente 427/7 V8
1966 - 1967 Mercury Commuter 410/6.7 V8
1966 - 1968 Mercury Commuter 428/7 V8
1968 Mercury Cougar 427/7 V8
1970 - 1971 Mercury Cougar 429/7 V8
1968 - 1970 Mercury Cougar 428/7 V8
1965 - 1967 Mercury Comet 427/7 V8
1965 - 1968 Mercury Cyclone 427/7 V8
1968 - 1969 Mercury Cyclone 428/7 V8
1965 - 1967 Mercury Commuter 427/7 V8
1969 Mercury Cougar 302/5 V8
1965 Mercury Marauder 427/7 V8
1967 Mercury Marquis 410/6.7 V8
1967 - 1969 Mercury Marquis 428/7 V8
1966 - 1967 Mercury Montclair 410/6.7 V8
1965 - 1967 Mercury Montclair 427/7 V8
1968 - 1969 Mercury Montego 428/7 V8
1968 Mercury Montego 427/7 V8
1970 - 1971 Mercury Cyclone 429/7 V8
1967 Mercury Marquis 427/7 V8
1966 - 1968 Mercury Montclair 428/7 V8
1965 - 1967 Mercury Monterey 427/7 V8
1966 - 1970 Mercury Monterey 428/7 V8
1970 Mercury Montego 429/7 V8
1966 - 1967 Mercury Park Lane 410/6.7 V8
1966 - 1968 Mercury Park Lane 428/7 V8
1966 - 1967 Mercury Monterey 410/6.7 V8
1965 - 1967 Mercury Park Lane 427/7 V8
1965 Mercury Villager 427/7 V8
1965 - 1968 Ford Custom 500 427/7 V8
1965 - 1968 Ford Galaxie 500 427/7 V8
1966 - 1970 Ford Custom 500 428/7 V8
1969 - 1970 Chevrolet Nova 396/6.5 V8
1961 Chevrolet Brookwood 409/6.7 V8
1961 Chevrolet Kingswood 409/6.7 V8
1961 Chevrolet Nomad 409/6.7 V8
1961 Chevrolet Parkwood 409/6.7 V8
1963 Ford 300 427/7 V8
1966 Ford Custom 427/7 V8
1968 - 1970 Ford Custom 428/7 V8
1969 Chevrolet Estate 396/6.5 V8
1969 Chevrolet Estate 427/7 V8
1970 Chevrolet Estate 454/7.4 V8
1970 Chevrolet Estate 402/6.6 V8
1969 Chevrolet Brookwood 427/7 V8
1970 - 1972 Chevrolet Brookwood 454/7.4 V8
1970 - 1972 Chevrolet Brookwood 402/6.6 V8
1968 - 1969 Chevrolet C10 Pickup 396/6.5 V8
1970 - 1972 Chevrolet C10 Pickup 402/6.6 V8
1973 - 1974 Chevrolet C10 Pickup 454/7.4 V8
1968 - 1969 Chevrolet C20 Pickup 396/6.5 V8
1970 - 1972 Chevrolet C20 Pickup 402/6.6 V8
1973 - 1974 Chevrolet C20 Pickup 454/7.4 V8
1968 - 1969 Chevrolet C30 Pickup 396/6.5 V8
1970 - 1972 Chevrolet C30 Pickup 402/6.6 V8
1973 - 1974 Chevrolet C30 Pickup 454/7.4 V8
1967 - 1969 Chevrolet Camaro 396/6.5 V8
1969 Chevrolet Camaro 427/7 V8
1970 - 1972 Chevrolet Camaro 402/6.6 V8
1966 - 1969 Chevrolet Caprice 396/6.5 V8
1966 - 1969 Chevrolet Caprice 427/7 V8
1970 - 1976 Chevrolet Caprice 454/7.4 V8
1970 - 1972 Chevrolet Caprice 402/6.6 V8
1965 - 1970 Chevrolet Chevelle 396/6.5 V8
1970 - 1973 Chevrolet Chevelle 454/7.4 V8
1970 - 1972 Chevrolet Chevelle 402/6.6 V8
1968 Chevrolet Chevy II 396/6.5 V8
1966 - 1969 Chevrolet Corvette 427/7 V8
1965 Chevrolet Corvette 396/6.5 V8
1970 - 1974 Chevrolet Corvette 454/7.4 V8
1975 - 1980 Chevrolet C10 454/7.4 V8
1975 - 1986 Chevrolet C20 454/7.4 V8
1975 - 1986 Chevrolet C30 454/7.4 V8
1976 Chevrolet G20 454/7.4 V8
1975 - 1976 Chevrolet G30 454/7.4 V8
1970 - 1976 Chevrolet Impala 454/7.4 V8
1976 - 1980 Chevrolet K10 454/7.4 V8
1976 - 1978 Chevrolet K20 454/7.4 V8
1977 - 1986 Chevrolet K30 454/7.4 V8
1973 - 1975 Chevrolet Laguna 454/7.4 V8
1973 - 1975 Chevrolet Malibu 454/7.4 V8
1970 - 1975 Chevrolet Monte Carlo 454/7.4 V8
1987 - 1988 Chevrolet R30 454/7.4 V8
1989 Chevrolet R3500 454/7.4 V8
1987 - 1988 Chevrolet V30 454/7.4 V8
1989 Chevrolet V3500 454/7.4 V8
1975 - 1978 GMC C15 454/7.4 V8
1979 - 1980 GMC C1500 454/7.4 V8
1975 - 1978 GMC C25 454/7.4 V8
1979 - 1986 GMC C2500 454/7.4 V8
1968 - 1970 Ford Mustang 428/7 V8
1971 - 1972 Ford Mustang 351/5.8 V8
1964 - 1967 Ford Ranch Wagon 427/7 V8
1968 - 1970 Ford Ranch Wagon 428/7 V8
1963 - 1967 Ford Thunderbird 427/7 V8
1968 Ford Torino 427/7 V8
1970 - 1971 Ford Torino 429/7 V8
1963 Ford Thunderbird 410/6.7 V8
1966 - 1967 Ford Thunderbird 428/7 V8
1968 - 1969 Ford Torino 428/7 V8
1968 - 1969 GMC C15/C1500 Pickup 396/6.5 V8
1970 - 1972 GMC C15/C1500 Pickup 402/6.6 V8
1973 - 1974 GMC C15/C1500 Pickup 454/7.4 V8
1968 - 1969 GMC C25/C2500 Pickup 396/6.5 V8
1970 - 1972 GMC C25/C2500 Pickup 402/6.6 V8
1973 - 1974 GMC C25/C2500 Pickup 454/7.4 V8
1968 - 1969 GMC C35/C3500 Pickup 396/6.5 V8
1970 - 1972 GMC C35/C3500 Pickup 402/6.6 V8
1970 - 1972 Chevrolet Townsman 454/7.4 V8
1969 Chevrolet Townsman 396/6.5 V8
1969 Chevrolet Townsman 427/7 V8
1968 - 1970 Ford Country Sedan 428/7 V8
1964 - 1966 Ford Country Sedan 427/7 V8
1964 - 1968 Ford Country Squire 427/7 V8
1971 - 1972 Ford Country Sedan 429/7 V8
1967 - 1969 Ford Country Squire 428/7 V8
1964 - 1969 Ford Fairlane 427/7 V8
1968 - 1969 Ford Fairlane 428/7 V8
1970 Ford Fairlane 429/7 V8
1965 - 1967 Ford Galaxie 427/7 V8
1968 - 1969 Ford Galaxie 500 428/7 V8
1970 Ford Falcon 429/7 V8
1966 - 1967 Ford Galaxie 428/7 V8
1965 - 1969 Ford LTD 428/7 V8
1965 - 1968 Ford LTD 427/7 V8
1969 - 1971 Ford Mustang 429/7 V8
1968 Ford Mustang 427/7 V8
1975 - 1978 GMC C35 454/7.4 V8
1979 - 1986 GMC C3500 454/7.4 V8
1975 - 1976 GMC G25 454/7.4 V8
1976 GMC G35 454/7.4 V8
1976 GMC K15 454/7.4 V8
1980 GMC K1500 454/7.4 V8
1976 - 1978 GMC K25 454/7.4 V8
1979 - 1986 GMC K3500 454/7.4 V8
1987 - 1989 GMC R3500 454/7.4 V8
1987 - 1989 GMC V3500 454/7.4 V8
1961 - 1965 Chevrolet Bel Air 409/6.7 V8
1963 - 1969 Chevrolet Bel Air 427/7 V8
1965 - 1969 Chevrolet Bel Air 396/6.5 V8
1970 - 1975 Chevrolet Bel Air 454/7.4 V8
1970 - 1972 Chevrolet Bel Air 402/6.6 V8
1961 - 1965 Chevrolet Biscayne 409/6.7 V8
1963 - 1969 Chevrolet Biscayne 427/7 V8
1965 - 1969 Chevrolet Biscayne 396/6.5 V8
1973 - 1974 Chevrolet G10 Van 454/7.4 V8
1973 - 1974 Chevrolet G20 Van 454/7.4 V8
1973 - 1974 Chevrolet G30 Van 454/7.4 V8
1961 - 1965 Chevrolet Impala 409/6.7 V8
1963 - 1969 Chevrolet Impala 427/7 V8
1965 - 1969 Chevrolet Impala 396/6.5 V8
1970 - 1972 Chevrolet Impala 402/6.6 V8
1968 - 1969 Chevrolet K10 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K10 Pickup 402/6.6 V8
1973 - 1974 Chevrolet K10 Pickup 454/7.4 V8
1968 - 1969 Chevrolet K20 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K20 Pickup 402/6.6 V8
1973 - 1974 Chevrolet K20 Pickup 454/7.4 V8
1968 - 1969 Chevrolet K30 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K30 Pickup 402/6.6 V8
1973 - 1974 Chevrolet K30 Pickup 454/7.4 V8
1969 Chevrolet Kingswood 396/6.5 V8
1969 Chevrolet Kingswood 427/7 V8
1970 - 1972 Chevrolet Kingswood 454/7.4 V8
1970 - 1972 Chevrolet Kingswood 402/6.6 V8
1965 - 1967 Chevrolet Malibu 396/6.5 V8
1970 - 1972 Chevrolet Monte Carlo 402/6.6 V8
1970 Chevrolet Nova 402/6.6 V8
1970 - 1972 Chevrolet Townsman 402/6.6 V8
1970 - 1972 Chevrolet Biscayne 454/7.4 V8
1969 Chevrolet Brookwood 396/6.5 V8
1970 - 1972 Chevrolet Biscayne 402/6.6 V8

Specs:

Brand Mr. Gasket
Emission Code 5
Finish Polished
Material 410 stainless steel
Product Type HeadLock Locking Header Bolts
Warning California Proposition 65
Warranty Limited 90 Day
Weight 7
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76369277078

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K
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K. Torrance
Pawtucket, US
★★★★★ 1
Cheap, screw holes don't line up, screen is to short, and bars take WD-40 and a mallet
This has been my worst purchase on Amazon ever. DO NOT BUY. My first issue was that bars #4 and #5 would not go together, I ended up buying WD-40 and a mallet and that kind of got them together. Now I went to but the screen on (which is almost see thought) and the screen is to short. I can't attached the bottom bar to the tall bar. The screw hole is in the wrong spot, so the screen is not secure. No amount of pulling on the screen will make it grown .25" longer. Since I can't get the bars secure the walls are not steady and fall over easily. The feet did go together very nice. I can't return them according to Amazons policy. I bought 2 sets. I'm not going to try to build the other set I have. And I can't take apart the first set, since the bars are so tightly together. Also the polls have rust on them.
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Reviewed in the United States on December 10, 2023
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Rick
Pawtucket, US
★★★★★ 3
Very Poor Built Quality
Color: Black, Size: 3-Panel
They use cheap tarp like cloth that you might find on a tent, so it is not suitable as a teleconferencing background without blur applied. The legs are flimsy and lack rubber feet, so it will scratch floors. The tubing is flimsy and very hard to move and adjust. This is only good if you are setting it up somewhere like a gym or a garage.
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Reviewed in the United States on January 12, 2025
M
Verified Purchase
Mamacita
Pawtucket, US
★★★★★ 5
Great separator for room.
My kids love it. It separates their half of the room.
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Reviewed in the United States on February 25, 2025
G
Verified Purchase
Gwendolyn
Natrona Heights, US
★★★★★ 5
These are PERFECT for my Art Show coming up!
This is going to be PERFECT for my Art Show display. And also....EASY to put up and take down as well as store. I'm so grateful to have found them! They are super light weight. And sturdy for my application. And elegant and have clean lines for my display. I have ivy draped and also fairy lights which make it look classy yet simple! Love them!
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Reviewed in the United States on September 27, 2022
A
Amazon Customer
Los Angeles, US
★★★★★ 5
Versatile Room Divider With Easy Assembly and Strong Coverage
Size: 3 Panel 12FT W
I picked up this Siebwin 3-panel folding room divider mainly for privacy and room separation, and overall it works very well. Assembly is very straightforward, and the divider can be set up, taken apart, and stored without much effort. The fabric quality feels good, and the frame construction is stronger and more stable than expected. The support tubes especially feel well built and help keep the divider standing securely. One feature I really liked is the flexibility of the design. The panels can be used together as a complete divider or separated depending on the setup and available space. That makes it much more versatile for different room layouts or temporary privacy needs. The coverage is also very good, and the size matches the manufacturer’s description accurately. The fabric blocks light and background visibility well enough to provide solid privacy without feeling overly heavy. The wider feet also help improve stability compared to thinner folding dividers. Another positive detail is that everything arrived complete with no missing parts or damaged pieces, which made assembly much easier and faster. Compared to cheaper privacy screens, this one feels more durable and easier to customize depending on the situation. In terms of value for the money, it feels like a very practical and worthwhile purchase considering the size, flexibility, and build quality. Overall, a versatile and well-built room divider with easy assembly, strong privacy coverage, stable construction, complete included parts, flexible panel configuration, and excellent everyday functionality.
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Reviewed in the United States on May 27, 2026

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