fasteners

Fasteners

Fasteners are bolts, nuts and washers that are dimensionally compatible with the Brio builder toy set.

Bolts

Bolts can be broken down into the following categories:

1. single headed - hexagonal head with a single threaded shaft
2. double headed - two threaded shafts separated by hexagonal shaped fixed washer
3. angled - future feature - threaded shafts at discrete angular interections (e.g. two threaded shafts at a 90° angle)

Within the main categories, bolts can be futher sub-dividied into the following profiles:

1. regular
2. nut stop
3. slotted
4. slotted nut stop

regular

Regular bolts are bolts which lack any additional features. The length of a regular bolt is designed to clamp one beam thickness equivalent for every length multiplier.

Naming convention: if you wish to clamp one beam with a standard bolt, you would use a regular_1 bolt. If you need to clamp two beams, you would use a regular_2 bolt. The image above would be regular_3

regular bolt length = bolt head thickness + nut thickness + (bolt diameter / 4) + (bolt length multiplier x beam thickness)

nut stop

Nut stop bolts are bolts with a built in non-threaded portion which serves to stop a nut from clamping some distance to the bolt head. These bolts are most useful when serving as "axles" for beams, wheels, pulleys and idler gears.

Naming convention: if you need an axle for a single beam, you would use a nut_stop_1 bolt. If you need an axle for two beams, you would use a nut_stop_2 bolt. Any number following an 'n-dash' (\-) indicates the nut stop length. For example, say you needed a bolt which was able to accomodate 5 beam thicknesses, but wished to have the nut stop serve as an axle for 2 beams, you would use a nut_stop_5-2 bolt. The image above would be nut_stop_3-2

nut stop bolt length = regular bolt length + (nut stop length x nut stop multiplier)

slotted

Slotted bolts have an oval neck profile immediately below the bolt head that allows the bolt to be retained in a slotted beam. These bolts can be used to clamp an object anywhere along the slot length.

Naming convention: if you wish to clamp one beam with a slotted bolt, you would use a slotted_1 bolt. If you need to clamp two beams, you would use a slotted bolt. The image above would be slotted_3

slotted bolt length = regular bolt length + beam thickness

slotted nut stop

Slotted nut stop bolts have an oval neck profile immediately below the bolt head as well as a nut stop profile, allowing the slotted bolt to slide along a beam slot while acting as an axle.

Naming convention: Any number following an an 'n-dash' (\-) indicates the nut stop length. For example, say you needed a bolt which was able to accomodate 5 beam thicknesses, but wished to have the nut stop serve as an axle for 2 beams, you would use a slotted_nut_stop_5-2 bolt. The image above would be slotted_nut_stop_3-2

slotted nut stop bolt length = regular bolt length + beam thickness + (nut stop length x nut stop multiplier)

Nuts

Nuts are standard clamping hardware that come in a variety of thicknesses.

Washers

Washers are available in incremental thicknesses with standardized inner and outer diameters.