Historically the difference between a bolt and a screw was that the screw was threaded to the head whereas the bolt had a plain shank. However I would say that now this could cause you a problem if you made this assumption when specifying a fastener. The definition used by the Industrial Fastener Institute (IFI) is that screws are used with tapped holes and bolts are used with nuts. Obviously a standard 'bolt' can be used in a tapped hole or with a nut.

The top of the spire is threaded and reinforced to hold a cross or lightning package, but it is not designed to support the entire weight of the spire. Click here to see a picture of one possible way of lifting the spire. See similar questions...

The maximum is 1 1/8" shank size fitting up to a 2 5/16" hitchball. Special Note: We do not recommend nor endorse any modification of the current design! See similar questions...

All strength properties of bolts and capscrews are the same. Capscrews are typically used in tapped holes and bolts are typically assembled with a nut. Cardinal Fastener manufactures its bolts to meet most of the dimensional specifications of capscrews therefore allowing a Cardinal Fastener bolt to be subsitituted for a capscrew. See similar questions...

M Acrylic Plus Tapes are designed for lower elongation at a given load, whereas the "screw test" shows the point at which a tape can no longer elongate. With conventional tapes, the product is designed to elongate over the varying load range. See similar questions...

a. Most surfaces are concrete so we supply non-expansion self-tapping fixing bolts for a trouble free installation. There is no marking out required - the line is simply bolted laid in position and bolted securely down. A nylon plug and screw is needed for asphalt surfaces and the line will have to be marked out slowing down the installation process.Back to top See similar questions...

This is the name given to the action when a knee reaches full extension and just as the knee locks into hyperextension the knee rotates in an outward direction just a few degrees. This has the effect of putting most of the weight onto the cartilage, menisci, and bones of the joint while giving a rest to the muscles of the thigh and calf. What allows for this is that the medial femoral condyle is slightly curved and the medial condylar notch is slightly longer than the lateral condylar notch. See similar questions...

Well, up front it mainly has to do with the construction methods. The bolt-on neck, as the name implies, is secured to the body with screws and the neck can be removed. Bolt-on neck basses are generally considered to have a punchier tone. Set-neck basses have necks that are glued in place. The neck is not removable. With set-neck construction the neck joint can be contoured to feel more comfortable then a bulkier bolt-on style bass. See similar questions...

Modern reels are a lot easier to use than old ones. There is a learning curve, but it's pretty easy. Most current conventional reels have an anti-backlash mechanism, a brake, that slows the spool as it turns over the course of a cast. This will save you a lot of grief, though you still have to use your reel hand thumb. Older reels, like the Penn Squidder, require more skill to use. There are a few modern reels without a brake, and we'll get to those. See similar questions...

Screw Clips are used to secure the tubing before pouring your concrete slab. They twist into the 2" foam-board insulation under the concrete and the tubing simply snaps into the screw clip. We recommend Screw Clips placed every 30 inches. See similar questions...

In the unlikely event that the Monkeys don't show up when they are supposed to, and its OUR fault, we will give you an extra calling period free, even if we miss one day. Under some circumstances, you still might have to pay. Sorry. See The Fine Print. See similar questions...

Be sure that all four corners are tied to the vehicle frame. Each frame bracket must be bolted to the vehicle frame with two bolts, unless optional weld is used. These instructions are guidelines only, actual installation is the responsibility of the installer and the owner. Either way is acceptable. If the you choose to have the brackets welded to the frame, Reese requires the brackets to be welded by a certified welder. See similar questions...

Recent research from Vaisala-GAI's LDAR and LDAR II lightning detection networks show that lightning can travel 60 miles or more. The longest bolts start at the front of a squall line and travel horizontally back into clouds trailing behind the squall line. The longest bolt they have seen to date was 118 miles long in the Dallas-Ft. Worth, TX area. Since 3-D lightning measurements are relatively new, scientists are learning more every day and these numbers may change. See similar questions...

A "Bolt from the Blue" is a cloud-to-ground flash which typically comes out of the back side of the thunderstorm cloud, travels a relatively large distance in clear air away from the storm cloud, and then angles down and strikes the ground. These lightning flashes have been documented to travel more than 25 miles away from the thunderstorm cloud. They can be especially dangerous because they appear to come from clear blue sky. See similar questions...

These markers were prototypes and the design was shelved due to performance limits. A closed bolt Shocker SFT/NXT will never be released. The design will not be revisited. Ever. Stop propagating this rumor. See similar questions...

The best way to secure two or more beams together is to use a carriage bolt that passes through all the pieces of wood and is fastened at the end with some type of locking means, such as a lock washer and nut. This is through-bolt construction. This method provides strong, reliable joints and allows the bolts to be adjusted as many times as necessary without weakening the structural integrity of the system. See similar questions...

a. We use the very proven fixing system developed for installing speed ramps. Tarmac, asphalt, concrete and block surfaces are ideal. Watch out for any pronounced camber in the centre of the road our steel teeth units are one metre long sections and not flexible. Back to top See similar questions...

A bicycle is used in many different ways, from leisure riding around the block to radical 30-foot drop-offs. Each riding applications places different requirements on the crankset and bottom bracket. Thus, we included two bolt sizes in this standard to allow manufacturers and riders to choose the best ISIS Drive bottom bracket for their needs. An ISIS Drive crank is compatible with either bottom bracket size, be it M12 or M15. See similar questions...

Once you have registered with itsyourftp.com you will have the basic service which is 1gb of FTP space which is available via your FTP client, you will be able to connect with multiple simultaneous connections from any number of locations. You are provided with one login username and password which will give you full read/write access to your webspace. Bolt-on services are additional services available to give you more advanced functionality. See similar questions...

Generally speaking, the bolt is the device inside the gun which both pushes the paintball from the breech into the bore, and serves to channel the gas from the valve to the ball. In standard configuration, the bolt face has one large opening in front through which the gas is channeled. A venturi bolt has multiple holes designed to control the flow of the gas and it's impact on the ball. See similar questions...