Silverline F Clamp Heavy Duty Bar Clamping - 300mm 633820

Silverline F Clamp Heavy Duty Bar Clamping - 300mm 633820

Barcode: 5055058188908

MPN: 633820

Overview:

The Silverline F Clamp Heavy Duty Bar Clamping (300mm) 633820 is built for strong, controlled clamping across a wide range of workshop and site tasks. With a 150mm opening capacity and 80mm jaw depth, it offers useful reach for furniture making, joinery, gluing and general fabrication work. The sliding bar design lets you adjust the opening quickly, while the square-thread screw provides smooth, dependable pressure when tightening. For better grip and workpiece protection, the clamp uses cast iron jaws with soft plastic jaw guards, plus a swivel shoe with a ball-and-socket style head to maximise contact on uneven or irregular surfaces.

Key Features

• Heavy duty 300mm F clamp for woodworking, DIY and fabrication tasks

• 150mm opening capacity with 80mm jaw depth for good reach

• Durable cast iron jaws for strength and long service life

• Serrated bar with locking teeth helps prevent slippage under load

• Square-thread screw for controlled, consistent clamping pressure

• Swivel shoe helps clamp uneven or irregular shapes securely

• Soft plastic jaw guards help protect workpieces from marks

• Comfortable plastic handle for firm grip and control

Specifications

• Brand: Silverline

• Product Type: Heavy duty F clamp / bar clamp

• Size: 300mm

• Opening Capacity: 150mm

• Jaw Depth: 80mm

• Jaw Material: Cast iron

• Adjustment Method: Screw handle

• Handle Finish: Plastic

• Clamping Method: Thread bar + serrated bar with locking teeth

• Jaw Protection: Soft plastic jaw guards

• Hardened: Yes

• MPN: 633820

• Barcode: 5055058188908

Applications

• Holding timber during gluing, drilling, sanding and cutting

• Furniture building and cabinet assembly to maintain alignment

• General DIY repairs where parts need holding in position

• Light metalworking tasks such as holding components steady during fabrication

• Clamping uneven or awkward shapes using the swivel shoe

How to Use

• Slide the moving jaw along the bar to roughly match the workpiece width

• Position the clamp so the jaw guards sit flat against the workpiece

• Tighten the screw handle gradually until the work is secure

• Use the swivel shoe to improve contact on uneven surfaces

• Avoid overtightening to prevent damaging delicate materials

• Release slowly once the task is complete

Silverline Heavy Duty F Clamp 300mm – Key FAQs

• Can these clamps be used for both wood-working and metal-working?
  Yes. They’re suitable for a wide range of tasks, including woodworking and many metalworking or fabrication jobs where secure holding is required.

• Do the clamps come in multiple sizes?
  Yes. This series is commonly available in 150mm, 300mm, 450mm, 600mm and 900mm lengths to suit different project sizes.

• What is the opening capacity and jaw depth on this model?
  This 300mm clamp offers a 150mm opening capacity and 80mm jaw depth, giving useful reach for furniture and general workshop clamping.

• Do the soft jaw guards help protect the workpiece?
  Yes. The soft plastic jaw guards are designed to reduce marks and surface damage, especially on timber, finished edges and softer materials.

• How does the swivel shoe help during clamping?
  The swivel shoe improves contact when clamping uneven or irregular shapes, helping the clamp seat more securely and apply pressure more evenly.

• How strong is the clamping pressure?
  These are heavy-duty clamps designed to provide strong, consistent pressure for demanding tasks. Exact clamping force isn’t specified, but they’re built for firm holding power.