We sell no bolt without a head mark.
Zavtilo is a small industrial fastener supplier in Texas, working from one parts counter in Austin. Graded hex cap screws, socket screws, anchors, rivets and pins in the sizes shops actually spec, plus steel and aluminum bar cut to length on our own saw. Everything is quoted in writing against your list.
A parts counter at 46 Market Street, not a showroom
Zavtilo is the trading name of a small counter crew that stocks fasteners, cut blanks and assembly consumables. The site you are on, zavtilo.com, is run by the same people who pick your order. We are based at 46 Market Street, Büro 5, Austin, Texas 82389, United States, and that address is where pickups happen.
The business is a catalogue, and an inquiry-only one. There is no cart and no checkout on this site. You send a list, we check the shelf, and you get back a written reply with what is in stock, what is not, the price basis for each line and a lead time. Nothing is charged until you confirm that reply.
Who comes to us: maintenance techs who need twenty Grade 8 bolts by Thursday, small machine shops, fab shops, millwrights, contractors setting anchors in a slab, people building one prototype. Most of them arrive with a thread size, a grade and a count. That is the right way to arrive.
Steel bar cut to length in Austin, and the parts that hold it together
The saw is a horizontal bandsaw. It cuts 1018 and 1045 cold-finished round and flat, 6061-T6 aluminum bar, and A36 and 6061 plate into blanks. You give us a length. Bar is sawn to your length, never short, and no more than 1/16 in over. Every cut eats 1/8 in of kerf that we account for when we work out how many pieces come off a stick.
Ends get deburred before the piece leaves. The length is written on it. A shop that orders twelve 6061 aluminum bar blanks cut to length at 4.250 in should be able to drop them straight into a vise, not spend an hour with a file.
On the fastener side the shelf holds what stops a job when it is missing: socket head cap screws, Grade 5 and Grade 8 hex cap screws, nuts and washers, all-thread and B7 studs, wedge and drop-in anchors, blind rivets, helical inserts and rivet nuts, dowel pins and keystock. Then the stuff that goes on the threads: threadlocker, anti-seize, tapping fluid.
See all 11 catalogue sections or read how bar cutting is quoted.
How each kind of line is priced
Per box of 100
We quote by the box of 100 because that is how they come off the pallet. Above 1/2 in diameter most boxes drop to 50, and anchors run 25 or 50.
Per foot cut, plus a per-cut charge
The stock is billed by the foot used, kerf included. Each saw cut carries its own small charge, so ten short pieces cost more per foot than two long ones.
Per blank
Plate is priced per blank by size and thickness. A36 leaves with mill scale unless you ask; 6061-T651 leaves with its film on.
Per stick, per piece, per set
All-thread comes in 3 ft and 6 ft sticks or cut pieces. B7 studs are sold each, as a set with two 2H heavy hex nuts.
Grade 8 means six radial lines on the head. If there are no lines, we did not sell it to you.
The failure we see most often is a mystery bolt
Somebody pulls a hex bolt out of a coffee can, it looks right, it threads in, and it ends up in a load path. No head marking means nobody knows if it is Grade 2 at 74 ksi or something better. Usually it is Grade 2. It stretches, the joint loosens, and the call comes in after the bracket has let go.
So the rule here is flat. Grade 8 hex cap screws from this counter in Austin carry six radial lines and 150 ksi minimum tensile. Grade 5 carries three lines and 120 ksi to 1 in. Stainless is labelled 18-8 or 316, never just "stainless". If we cannot tell you the grade or the alloy, it is not on the shelf.
Every lot leaves in a bag or box labelled with thread, length, grade or alloy, finish and the lot it came from. Threads on graded fasteners get spot-checked with go/no-go ring and plug gauges before they are bagged. The lot label is explained on the inquiry page.
Zinc on a Grade 8 screw is yellow for a reason. Ask before you put plain-finish alloy outdoors. And if you are ordering stainless steel fasteners in Austin for anything near a pool or the coast, ask about 316 before you settle on 18-8.
From your list to a labelled bag on the counter
Full process-
You send the list
Thread, length, grade, finish, count. For blanks: alloy, size, cut length, number of pieces. The configurator builds the line for you if you are unsure of the designation.
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We check the shelf and reply in writing
Each line marked in stock, short or not carried, with its price basis and a lead time. We do not quote over the phone without a written spec, because a misheard 5/16 becomes a wrong 3/8.
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Pick, gauge, cut, label
Counted by weight against a sample count. Graded threads spot-checked with ring and plug gauges. Bar sawn, deburred, length marked. Every bag gets its lot label.
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Pickup or freight
Collect at 46 Market Street, Büro 5, or we ship by carrier at the rate stated in the reply. Heavy bar and plate go freight.
What we turn down
One bolt out of a box of 100
Commodity sizes go out in box quantities. Breaking boxes for single pieces turns a counter into a sorting job and the next customer gets a short box. Odd sizes and large diameters are a different conversation; ask.
Quotes read out over the phone
Call to ask whether we carry something, by all means. A price goes in writing against a written spec, so both of us can see what was agreed.
Silent "equivalent" swaps
If we are out of yellow-zinc Grade 8 we will not ship plain-finish and hope. The reply says what we have instead, and you decide.
Certificates we do not hold
We do not claim an ISO registration, an accreditation or a mill-cert program. If your job needs traceable certs on every lot, say so up front and we will tell you honestly whether we can help.
Write to the counter and a person reads it
There is no call center and no bot answering for us. Email goes to the same people who pull parts off the shelf. Replies go out in writing on working days, and a long list may take a little longer than a short one because we actually count what is there.
The fastest route is the inquiry form, because it puts your spec in a shape we can check line by line. The chat button in the corner works too; leave an email in it and the answer will still reach you if you close the tab.
- Email[email protected]
- Phone+1 (536) 555-1163
- Counter and pickup46 Market Street, Büro 5
Austin, Texas 82389
United States
Send those four things and we reply in writing with what is on the shelf and what is not.