Below are descriptions and common names for the concrete fasteners that we carry. Use this to find the right fastener for your project. Click on
the photo or name of the fastener to buy.
Commonly called:
Wedge anchor, stud anchor, kwik-bolt, thunderstud, thunderstuds, wedge anchors, DFS wedge anchor, sup-r-stud, kwik bolt II anchor, Hilti kwik
bolt, kwik bolt, concrete stud anchor, stud wedge anchor, stud anchor system, power bolt, power stud, trubolt, redi bolt, wedge all, kingpin.
Description:
Two pieces, permanently pre-assembled into a single unit make up the ThunderStud® wedge anchor. A portion of the rod’s length is threaded
and protected from damage by the rounded design of its extreme end. A necked down diameter that tapers outwardly to the full diameter of the rod makes
up the other end. The unit has a carbon steel, precision formed universal clip permanently assembled around the necked down diameter. Packages of
Thunderstud® Concrete Wedge Anchors always contain the correct number of nuts and washers.
Common variations and misspellings:
Quick bolt, thunder stud, super stud, superstud, quick bolt II anchor, powerbolt, powerstud, true bolt, ready bolt, kind pin, superstud.
Commonly called:
Sleeve anchor, sup-r-sleeve, thunderbolt, bolt sleeve anchor, lok bolt, lock bolt, dynabolt, sleeve all, sleeve anchors, concrete anchor,
masonry anchor
Description:
Each high quality steel part of the Concrete Sleeve Anchor is zinc plated. A tubular expander sleeve is assembled over a threaded stud
with an outwardly flared cone-shaped end. Over the stud and butted against the small diameter of the cone is a tubular expander sleeve. The anchor,
which works on a true expansion principal, comes ready for use. The cone-shaped stud end is pulled into the expander sleeve as the nut is tightened.
This wedges it outward and locks the anchor into the base material.
Common variations and misspellings:
Super sleeve, Super-Sleeve, Thunder bolt, lockbolt, dyna-bolt,
Commonly called:
Tapcon®, concrete screw, self tapping concrete screw, concrete screws, the original tapcon, con-sert screw, consert screw, confast screw, ruff-nex,
kwik-con, tapper, titen, masonry screws, concrete and masonry screw.
Description:
To provide exceptional holding power and stability, Tapcon® concrete screws are designed with alternating raised and lower threads with diamond
cut notches. Tapcon® brand concrete screws are tap threads into a pre-drilled hole, and are available in both 3/16" or 1/4" diameters
with either a flat Phillips #3 countersunk or a 5/16" hex washer head.
Common variations and misspellings:
Self-tapping concrete screw, Tap Con, concert screw, con fast screw, rough necks, roughnecks, quick-con, quick con, titan, kwik con.
Commonly called:
Drop-in, dropin, female anchor, hdi, Hilti drop-in anchor, concrete drop in anchor, sup-r-drop, HDI anchor, lip drop in anchor, HDI-L
anchor, HDI-P anchor, thunderdrop, multi-set concrete anchor.
Description:
Drop-In Anchors are made of an expansion shied and an expander plug. The expansion shield is made of zinc-plated steel and has four
equally spaced slots for a portion of its length. The bottom part of the shield may be knurled. The shield also has a smooth flangeless top that allows
either flush or countersunk installation with a bottom lip that is tapered to allow maximum depth and holding power. The expander plug is case hardened
and tempered to prevent galling and binding during expansion. The inside of the anchor is threaded. The drop-in anchor needs to be set with a setting
tool.
Common variations and misspellings:
Drop in anchor, hilti drop-in anchor, super drop, lip drop-in anchor, thunder drop.
Commonly called:
Machine screw anchor, hollow wall anchor, ajs, machine screw anchors, sup-r-caulk, caulkin anchor, caulk-in anchor, thundertite, steel
drop in, hollow set drop in, calk-in concrete and masonry anchor.
Description:
The Machine Screw Anchor is made up of a 100% rust proof, antimonial lead alloy sleeve and a zinc alloy (Zamak 5) internally threaded
cone. The cone has a series of integral rids or lugs which prevent the cone shaped nut from turning in the sleeve. Anchors are pre-assembled into
a single self-contained unit. The machine screw anchor is expanded by the use of a setting tool.
Common variations and misspellings:
Super caulk, thunder tight, thunder tite, steel drop-in, hollow set drop-in, cawlk-in, cawlk in.
Commonly called:
Leadwood screw anchor, sup-r-lead, wood screw lead anchors, screw lead, wood screw expansion anchor, LWSA, concrete and masonry anchor.
Description:
The Leadwood Screw anchor is designed for ease of initial expansion so that it does not turn in the masonry. The majority of the length
of the Leadwood Screw Anchor is split from the bottom up. A portion of its length has longitudinal ribs and the top end of the anchor tapers outward
from the anchor diameter into a tubular thin section cone. The tapered design facilitates proper expansion in masonry. When installed, as the screw
goes deeper into it’s anchor, the longitudinal ribs bite into the masonry and allow the screw to form its own threads without twisting.
Common variations and misspellings:
Super lead, superlead, woodscrew.
Commonly called:
single expansion anchor, single expansion shields, keystone single expansion shield, single wedge machine bolt, single, single thunderloc,
SMSA, machine screw anchor, concrete and masonry anchor.
Description:
Single Expansion Anchors, made of a precision die-cast zinc alloy (Zamak 5), are recommended for shear loads or where the bolt is subjected
to side pressure or vibration. They are made of a nut, a cone and a tubular shield that are pre-assembled into a single unit. The two-piece tubular
shield contains a wedge shaped nut at one end and is bound together with one spring band. The placement of integral lugs on the nut and the cone
keep the wedges from turning in the shied during expansion. The expansion action at one end of the anchor distributes the anchored load throughout
the length of the anchor.
Common variations and misspellings:
Thunder lock, thunderlock.
Commonly called:
double expansion anchor, double expansion shield, keystone double, double thunderloc, double, DMSA, machine screw anchor, concrete
and masonry anchor.
Description:
Double Expansion Anchors, made of a precision die-cast zinc alloy (Zamak 5), are recommended for shear loads or where the bolt is subjected
to side pressure or vibration. They are made of a nut, a cone and a tubular shield that are pre-assembled into a single unit. The two-piece tubular
shield contains a wedge shaped nut at one end, a wedge shaped hollow cone at the other end and is bound together with two spring bands. The placement
of integral lugs on the nut and the cone keep the wedges from turning in the shied during expansion. The expansion action at both ends of the shield
distributes the anchored load throughout the length of the shield.
Common variations and misspellings:
Double thunder lock, double thunderlock.
Commonly called:
Lag shield, lag screw shields, lag screw anchor, sup-r-lags, lag screw expansion anchor, LSES, concrete and masonry anchor.
Description:
The Concrete Lag Shield Anchor is a two-part expansion shield made of zinc alloy commonly known as Zamak 5, a rust proof material.
The shield comes in two lengths; short lag shield is for anchoring in high grade concrete or where thickness of base material prohibits the use of
a longer length shield. The long lag shield is for use in lower grade base material or where extra anchoring strength is required. The design of
the shell-like unit includes has tapered internal threads for a portion of length that permit easy turning of the screw without lubrication. The
outside of the anchor has a series of circumferential ribs starting at the bottom and running for a major portion of its length. The back end of
the anchor has two equally spaced ribs that protrude beyond its diameter and run for a portion of its length. Fastened objects can be easily removed
after being fastened.
Common variations and misspellings:
super lags, superlags
Commonly called:
nylon nail-it, nail-it, nail it, strike anchor, mushroom head, nylon nail anchor, tap-its, impact anchor, thunder tap, nylon nail anchors,
nylon nail in, concrete and masonry anchor.
Description:
Made of injection molded, thermoplastic-formula polyamide resins, the Nylon Nail-It Anchor are comprised of a shank and a steel pin
expander. In addition to a series of circumferential ribs running for a portion of its length, the shank is a split from the bottom up for a majority
its length. The anchor body has a concentric cavity, or bore, which runs through the head thickness and into the shank for a depth just beyond the
point where the slit terminates in the body. The steel pin expander, made of high carbon steel properly heat treated and heavily plated with bright
zinc, differs from a nail because of a specially designed thread it has in a section of it’s shank and because it has a screwdriver slot in
the head. It has maximum corrosion resistance. The specially designed threads and head on the expander pin lock the assembly.
Common variations and misspellings:
Tap it anchors, tap its, thunder tap, nylon nail-in.
Commonly called:
metal hit anchor, zamac anchor, strike anchor, nail anchor, roof anchor, hammer drive anchor, thundernail, hammer drives, zamac hammer
screw, zamacs, zamac nailin, hammer set, concrete and masonry anchor.
Description:
This precision die-cast Metal Hit anchor is made of a cylindrical zinc alloy body and a zinc-plated steel pin expander. Designed for
light-duty concrete, the anchor is made to withstand unusual toughness. Made of carbon steel, the pin expander has been properly heat-treated and
heavily zinc plated so that it has maximum corrosion resistance. Its shank is split from the bottom up for a majority of its length. The body has
a bore, which runs through the head thickness and into the shank for a depth just past the point where the slot terminates the body.
Common variations and misspellings:
Thunder nail, zamac nail-in.
Commonly called:
Split anchor, split drive anchor, flat head split anchor, round head split anchor, split bolt anchor, split drive anchors, super-split,
split drive anchors, spike, drive, CSD, countersunk split drive anchor, concrete and masonry anchor.
Description:
Manufactured with hardened, heat-treated carbon steel, Split drive anchors are available with a flat counter sunk head or a rounded
head. There are two sheared, pre-expanded halves at the base that are compressed as the anchor is driven into concrete. The anchor exerts tremendous
force on the inside walls of the hole as the two halves continually try to regain their original shape. This positive expansion compensates for poor
grade or old concrete. Concrete Split Drive anchors have low “slip” rates and increased vibration resistance.
Common variations and misspellings:
Super split.
Commonly called:
Strike anchor, all American anchor, hit anchor, nail anchor, all American anchor, all anchor, EZA, easy set expansion anchor, concrete
and masonry anchor.
Description:
The body of the Concrete Strike Anchor is carbon steel and coated with yellow dichromate over zinc plating. It has an interior hole
that extends the length of the anchor. The anchor is threaded on the top where the drive pin is inserted (the drive pin comes inserted in the interior
hole of the anchor). The opposite end of the anchor has four slots that are equally spaced and ribs that extend the circumference of the anchor,
both which run a portion of its length.
Common variations and misspellings:
EZ set expansion anchor.
Commonly called:
zip-it, zip it, zipit, ez, ez anchor, wall driller, zap-its, HDS, drywall anchor, the bat, e-z anchor, sure wall.
Description:
The Wall Driller has deep cutting threads that provide strong engagement and resist stripping out. They are injection molded of either
engineered plastic or Zamak. The anchor has a single point, so it makes only small, clean hole when inserted and does not disrupt the consistency
of the drywall. Their tapered, oversized head seals the hole with a flush mount.
Common variations and misspellings:
Zap it, zap its, ez anchor, easy anchor, surewall.
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