No hassle
returns
Live in-stock
inventory
Save over
60% retail
You have no items in your shopping cart.
September Sale: $27.26
In Stock (18)
Usually delivered within 2 days
Free Shipping
Part number: 100-1211
Universal product
Product Details
ARP 100-1211 Header Bolts
Products specifications
Fastener Finish Black oxide
Fastener Material Steel
Fastener Style Bolt
Head Style 12-point
Material Black Oxide
Notes 3/8 in. wrench head size.
Quantity Sold as a set of 12.
Size 3/8
Thread Size 3/8-16 in.
UHL 1
Underhead Length (in) 1.000 in.
Underhead Length (mm) 25mm
Header Bolt Kit
12Point Head
12Pieces

ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application. Whats more, the compact 12-point nut lets you easily slip a socket close to the pipe. Each ARP accessory stud or bolt kit includes the specific number of parts for your application, plus premium-quality washers and hex or 12-point nuts, as required. Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading. Studs and bolts come either black oxide chrome moly or Stainless 300. Both are nominally rated at 170,000 psi tensile strength; substantially stronger than Grade 8 hardware. Specially drilled NASCAR models are available for those who wish to safety wire their header bolts to prevent loosening.

Special NASCAR model header bolts are available that are drilled for use of safety wire. Perfect for any racer who desires the ultimate in security. Available for small block and big block Chevrolet engines, plus many universal applications.

Reviews
Add your review
M
Thanks Autoplicity you had the best prices I could find, fast shipping, and everything I ordered was exactly what I was looking for! Great Customer Service!
B
The Amazon checkout made the process very seamless. Thanks!
C
The price was right, and they were very helpful and told me all about the product I ordered, and had it shipped out to me quickly!

Thanks!
J
This was my second order with Autoplicity. The first order I had to call to get an update, but just happens the part was out for delivery the day I had called. This second order went without a hitch! In both cases, shipping was fast and the products delivered at great prices, not to mention some of the best prices on shipping. I will definitely look here for my future parts needs!!
Show All Reviews
Fitment
Chevrolet Bel Air
1975 Chevrolet Bel Air ALL
1974 Chevrolet Bel Air ALL
1973 Chevrolet Bel Air ALL
1972 Chevrolet Bel Air ALL
1971 Chevrolet Bel Air ALL
1970 Chevrolet Bel Air ALL
1969 Chevrolet Bel Air ALL
1968 Chevrolet Bel Air ALL
1967 Chevrolet Bel Air ALL
1966 Chevrolet Bel Air ALL
1965 Chevrolet Bel Air ALL
1964 Chevrolet Bel Air ALL
1963 Chevrolet Bel Air ALL
1962 Chevrolet Bel Air ALL
1961 Chevrolet Bel Air ALL
1960 Chevrolet Bel Air ALL
1959 Chevrolet Bel Air ALL
1958 Chevrolet Bel Air ALL
1957 Chevrolet Bel Air ALL
Chevrolet Biscayne
1972 Chevrolet Biscayne ALL
1971 Chevrolet Biscayne ALL
1970 Chevrolet Biscayne ALL
1969 Chevrolet Biscayne ALL
1968 Chevrolet Biscayne ALL
1967 Chevrolet Biscayne ALL
1966 Chevrolet Biscayne ALL
1965 Chevrolet Biscayne ALL
1964 Chevrolet Biscayne ALL
1963 Chevrolet Biscayne ALL
1962 Chevrolet Biscayne ALL
1961 Chevrolet Biscayne ALL
1960 Chevrolet Biscayne ALL
1959 Chevrolet Biscayne ALL
1958 Chevrolet Biscayne ALL
Chevrolet Blazer
1994 Chevrolet Blazer ALL
1993 Chevrolet Blazer ALL
1992 Chevrolet Blazer ALL
1991 Chevrolet Blazer ALL
1990 Chevrolet Blazer ALL
1989 Chevrolet Blazer ALL
1988 Chevrolet Blazer ALL
1987 Chevrolet Blazer ALL
1974 Chevrolet Blazer ALL
1973 Chevrolet Blazer ALL
1972 Chevrolet Blazer ALL
1971 Chevrolet Blazer ALL
1970 Chevrolet Blazer ALL
1969 Chevrolet Blazer ALL
Chevrolet Brookwood
1972 Chevrolet Brookwood ALL
1971 Chevrolet Brookwood ALL
1970 Chevrolet Brookwood ALL
1969 Chevrolet Brookwood ALL
Chevrolet C10 Pickup
1986 Chevrolet C10 Pickup ALL
1985 Chevrolet C10 Pickup ALL
1984 Chevrolet C10 Pickup ALL
1983 Chevrolet C10 Pickup ALL
1982 Chevrolet C10 Pickup ALL
1981 Chevrolet C10 Pickup ALL
1980 Chevrolet C10 Pickup ALL
1979 Chevrolet C10 Pickup ALL
1978 Chevrolet C10 Pickup ALL
1977 Chevrolet C10 Pickup ALL
1976 Chevrolet C10 Pickup ALL
1975 Chevrolet C10 Pickup ALL
1974 Chevrolet C10 Pickup ALL
1973 Chevrolet C10 Pickup ALL
1972 Chevrolet C10 Pickup ALL
1971 Chevrolet C10 Pickup ALL
1970 Chevrolet C10 Pickup ALL
1969 Chevrolet C10 Pickup ALL
1968 Chevrolet C10 Pickup ALL
1967 Chevrolet C10 Pickup ALL
1966 Chevrolet C10 Pickup ALL
1965 Chevrolet C10 Pickup ALL
1964 Chevrolet C10 Pickup ALL
1963 Chevrolet C10 Pickup ALL
1962 Chevrolet C10 Pickup ALL
1961 Chevrolet C10 Pickup ALL
Chevrolet C10 Suburban
1986 Chevrolet C10 Suburban ALL
1985 Chevrolet C10 Suburban ALL
1984 Chevrolet C10 Suburban ALL
1983 Chevrolet C10 Suburban ALL
1982 Chevrolet C10 Suburban ALL
1981 Chevrolet C10 Suburban ALL
1980 Chevrolet C10 Suburban ALL
1979 Chevrolet C10 Suburban ALL
1978 Chevrolet C10 Suburban ALL
1977 Chevrolet C10 Suburban ALL
1976 Chevrolet C10 Suburban ALL
1975 Chevrolet C10 Suburban ALL
1974 Chevrolet C10 Suburban ALL
1973 Chevrolet C10 Suburban ALL
1972 Chevrolet C10 Suburban ALL
1971 Chevrolet C10 Suburban ALL
1970 Chevrolet C10 Suburban ALL
1969 Chevrolet C10 Suburban ALL
1968 Chevrolet C10 Suburban ALL
Chevrolet C1500
1999 Chevrolet C1500 ALL
1998 Chevrolet C1500 ALL
1997 Chevrolet C1500 ALL
1996 Chevrolet C1500 ALL
1995 Chevrolet C1500 ALL
1994 Chevrolet C1500 ALL
1993 Chevrolet C1500 ALL
1992 Chevrolet C1500 ALL
1991 Chevrolet C1500 ALL
1990 Chevrolet C1500 ALL
1989 Chevrolet C1500 ALL
1988 Chevrolet C1500 ALL
Show All Vehicle Fitments
Return Policy
Returns are easy at THMotorsports
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy