anchor screws(50pcs)8x100mm

anchor screws(50pcs)8x100mm

Product Description   anchor screws(50pcs)8x100mm
Secure heavy fixtures and structures with confidence using these Anchor Screws 8x100mm, a professional-grade fastening solution for concrete, brick, masonry, and other solid substrates.

This complete set of 50 anchor screws includes everything needed for secure installations: zinc-plated steel bolts, matching hex nuts, and oversized washers.

The 8mm diameter provides substantial shear and tensile strength, while the 100mm length allows for deep penetration and secure anchoring in various material thicknesses. These anchor screws utilize a simple yet effective expansion principle:

when tightened, the bolt draws a conical expander into a metal sleeve, causing it to expand against the walls of the pre-drilled hole and creating a powerful mechanical lock.

Perfect for mounting heavy shelves, securing structural elements, installing machinery, or any application requiring reliable fastening into solid materials, this 50-piece set of 8x100mm Anchor Screws offers exceptional value and performance for contractors, builders, and serious DIY enthusiasts.

How Do Anchor Screws Work in Concrete and Masonry?

Anchor screws, like these 8x100mm models, create secure fastenings in solid materials through mechanical expansion.

The installation process involves four key steps: First, drill a hole exactly 8mm in diameter (using an 8mm masonry bit) to the appropriate depth (typically 10-20mm deeper than the anchor length).

Second, clean the hole thoroughly of all dust and debris using a brush, vacuum, or compressed air—this is critical for proper expansion.

Third, insert the anchor sleeve assembly into the hole. Fourth, insert the bolt through your fixture, add the washer and nut, and tighten.

As you tighten the nut, it draws the conical expander upward into the sleeve, causing the sleeve to expand radially and grip the hole walls with tremendous force. This creates a secure, vibration-resistant connection that distributes load across a larger area of the base material than simple screw threads could achieve.

What Are the Key Applications for 8x100mm Anchor Screws?

The 8x100mm dimensions make these anchor screws versatile for medium to heavy-duty applications. Common uses include:
– Structural Mounting: Securing ledger boards, beam hangers, and structural brackets to concrete or masonry

– Heavy Shelving: Installing industrial shelving units, warehouse racking, and heavy-duty storage systems
– Machinery Installation: Anchoring machinery, equipment bases, and workstations to concrete floors
– Outdoor Projects: Mounting fence posts, gate hinges, pergolas, and deck footings to concrete foundations

– Interior Fixtures: Securing heavy cabinets, wall units, and partition walls to masonry surfaces
– Safety Installations: Mounting handrails, guardrails, and safety barriers in commercial and industrial settings

The 100mm length provides ample embedment depth for secure anchoring in most concrete and masonry applications, while the 8mm diameter offers the ideal balance between holding power and practical installation.

How Do You Calculate the Correct Hole Depth and Diameter?

Proper installation is crucial for anchor screw performance. For these 8x100mm anchor screws:
– Hole Diameter: Always use an 8mm masonry drill bit. A smaller hole won’t allow insertion; a larger hole prevents proper expansion.

– Hole Depth: Drill 10-20mm deeper than the anchor length (110-120mm total for 100mm anchors). This extra depth accommodates any dust that can’t be completely removed and ensures the anchor isn’t bottoming out.

– Fixture Considerations: Account for the thickness of the material you’re fastening. If mounting a 20mm thick timber to concrete, the effective anchor embedment is approximately 80mm (100mm total minus 20mm timber).

– Edge Distance: Maintain at least 100mm (4x diameter) from any unsupported edge to prevent material breakout.

– Spacing: Place anchors at least 160mm (8x diameter) apart to prevent overlapping stress zones in the base material.
Following these guidelines ensures maximum pull-out and shear strength for your installations.

What Are the Weight Capacities and Safety Factors?

The load capacity of 8x100mm anchor screws varies based on the base material (concrete strength rating) and installation quality. In standard 2,500 PSI concrete, properly installed:

– Shear Strength:Approximately 1,200-1,500 kg (2,645-3,307 lbs) per anchor
– Tension/Pull-out Strength: Approximately 800-1,000 kg (1,764-2,205 lbs) per anchor
– Safety Factor: Industry standards typically recommend a 4:1 safety margin for permanent installations

These values assume proper edge distance, spacing, and hole preparation. For critical structural applications, consult engineering specifications or a structural engineer

Always test anchors with a torque wrench to ensure proper installation—the expansion should be complete when the recommended torque (typically 25-30 Nm for 8mm anchors) is reached.

What Tools Are Required for Proper Installation?

Installing these anchor screws requires specific tools for best results:
– Hammer Drill: Essential for drilling clean holes in concrete or masonry (regular drills may struggle)
– 8mm Masonry Drill Bit:  Carbide-tipped for durability and clean holes
– Dust Removal Tools: Brush, vacuum, or compressed air for thorough hole cleaning
– Wrenches: Two wrenches (or a wrench and socket)—one to hold the bolt head, one to tighten the nut
– Torque Wrench: Recommended for critical applications to ensure proper expansion without overtightening

anchor screws(50pcs)8x100mm

– Safety Gear: Safety glasses, hearing protection, and dust mask during drilling
The 50-piece set is ideal for multiple projects or commercial use, reducing the per-anchor cost compared to smaller packages.

anchor screws(50pcs)8x100mml available in Mombasa, Kwale, Kilifi, Lamu, Mandera, Marsabit, Isiolo, Meru, Embu, Kitui, Machakos, Makueni, Nyandarua,

Nyeri, Kirinyaga, Murang’a, Kiambu, Turkana, Samburu, Trans Nzoia, Uasin, Gishu, Elgeyo Marakwet, Nandi, Baringo,

Laikipia, Nakuru, Narok, Kajiado, Kericho, Bomet, Kakamega, Vihiga, Bungoma, Busia, Siaya, Kisumu, Homa Bay, Migori, Kisii, Nyamira, Nairobi.

In Nairobi you can find them at: Westlands, Dagoretti,  Lang’ata, Starehe, Kamukunji, Embakasi, and Kasarani, Kibera, Mathare,

Eastleigh, Karen, Lavington, Westlands, Parklands, Runda, South C, South, Ngong Road

In Mombasa you can find us at : Nyali, Mwembe Tayari, Majengo, Likoni ,Bamburi, Miritini