Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Semi Steel Cast Iron casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 4” Wheel: 5-1/8” mounting height; 5” Wheel: 6-1/8” mounting height. BulletPoint2 : Weight Capacity: 3", 4", and 5": 300 lbs Capacity/Caster BulletPoint3 : Top plate measures at 2-1/2" x 3-5/8" with a bolt hole pattern of 1-3/4" x 2-7/8" to 3" and can either be bolted or welded on. BulletPoint4 : Brake options include a top lock brake, a total lock brake, or a posi lock brake. The top lock brake places a positive locking force against the wheel tread locking the wheel only. The total lock brake simultaneously locks the wheel and the swivel for a complete stationary position. The posi lock brake places a positive locking force against the wheel tread similar to the top lock brake, but the pedal is located above the wheel tread rather than on the side of the wheel. BulletPoint5 : Find other wheel materials, sizes and all Service Caster products at our Amazon Storefront. Click on the “by Service Caster” link above the main title on any Service Caster page listing. Color : 4 Swivel - Top Lock Brakes - Silver CompatibleWithVehicleType : Passenger Car CustomerPackageType : Standard Packaging ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 813117003044 ExternallyAssignedProductIdentifier2 : 0813117003044 ExternallyAssignedProductIdentifier3 : 00813117003044 IncludedComponents : mounting template ItemName : Semi Steel Cast Iron Swivel Top Plate Caster Set of 4 with 4 Inch Silver Wheels - Includes 4 Swivel with Top Lock Brakes - 1200 lbs. Total Capacity - Service Caster Brand ItemPackageDimensions_Height : 32.4 centimeters ItemPackageDimensions_Length : 12.1 centimeters ItemPackageDimensions_Width : 24.8 centimeters ItemPackageQuantity : 4 ItemShape : Round ItemTypeKeyword : plate-casters LoadCapacity : 300.0 pounds Manufacturer : Service Caster Material : Semi Steel Cast Iron ModelNumber : Series #20 MountingType : Plate Mount NumberOfItems : 4 PartNumber : SCC-20S414-SSS-TLB-4 ProductDescription : Listing is for a set of four (4) Service Caster Series #20 swivel casters, four (4) swivel casters with top lock brakes, 4” diameter by 1-1/4” wide semi steel cast iron wheels. Supports a total weight of 1,200lbs (300lbs/per caster). When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 sleeve bearing semi-steel cast iron casters. The Service Caster Series #20 is ideal for light and medium duty material handling, carts, equipment, and shop projects. The zinc plated finish provides durability under any condition, while the semi-steel wheels are abrasion resistant and rugged, maintaining effortless rolling under heavier loads, and provides a cost-effective solution over steel wheels. Sleeve bearings provide a metal sleeve inserted in a wheel to rest directly on the axle. This option is only recommended when rolling ease is less critical. Mounting options include top plate, bolt hole and standard and metric threaded stem sizes. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2020-08-06T15:14:51.300Z Size : 4" Wheel Style : Caster Spring Lock Plates SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 WebsiteShippingWeight : 7.4 pounds